Add to your order

  • Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
  • 24/7 support when you need it.
  • Quick, easy, and frustration-free claims.
Cover this product:
2-Year Protection Plan $7.99
3-Year Protection Plan $9.99
Cover all of your eligible devices:
Complete Protect: One plan covers all eligible past and future purchases (Renews Monthly Until Cancelled) $16.99/month

Add to your order

  • Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
  • 24/7 support when you need it.
  • Quick, easy, and frustration-free claims.
Cover this product:
$79.99 $79.99 per count
FREE Returns
FREE delivery Wednesday, May 14 to Nashville 37217
Or Prime members get FREE delivery Tomorrow, May 10.
In Stock
$$79.99 () Includes selected options. Includes initial monthly payment and selected options. Details
Price
Subtotal
$$79.99
Subtotal
Initial payment breakdown
Shipping cost, delivery date, and order total (including tax) shown at checkout.
Ships from
Amazon.com
Amazon.com
Ships from
Amazon.com
Sold by
Amazon.com
Amazon.com
Sold by
Amazon.com
Returns
30-day refund/replacement
30-day refund/replacement
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Support
Product support included
What's Product Support?
In the event your product doesn't work as expected or you need help using it, Amazon offers free product support options such as live phone/chat with an Amazon associate, manufacturer contact information, step-by-step troubleshooting guides, and help videos. By solving product issues, we help the planet by extending the life of products. Availability of support options differ by product and country. Learn more
Packaging
Ships in product packaging
black leaf Ships in product packaging

This item has been tested to certify it can ship safely in its original box or bag to avoid unnecessary packaging. Since 2015, we have reduced the weight of outbound packaging per shipment by 41% on average, that’s over 2 million tons of packaging material.

If you still require Amazon packaging for this item, choose "Ship in Amazon packaging" at checkout. Learn more
Include
Add a Protection Plan:
Sorry, your monthly warranty plan was removed because these plans are currently only available for single-item orders.
Add to your order

2 Year Personal Care Protection Plan

from Asurion, LLC
  • No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
  • Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
  • Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
  • Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
  • Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.

3 Year Personal Care Protection Plan

from Asurion, LLC
  • No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
  • Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
  • Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
  • Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
  • Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.

Asurion Complete Protect: One plan covers all eligible past and future purchases on Amazon

from Asurion, LLC
  • Buy a lot of stuff on Amazon? Tons of items eligible for coverage, from the latest tech like Laptops, Game Consoles, TVs, Phones, and Cameras to major appliances, sporting goods, tools, toys, personal care, furniture, and more (not eligible for commercial or business use items).
  • Accidents Happen. That’s why for your portable products we cover accidental damage from handling such as drops, spills and cracked screens. We also cover electrical and mechanical malfunctions, power surges, and wear and tear.
  • Today's and Future Purchases covered. 30 days after you are enrolled, all eligible purchases today and eligible future purchases made on Amazon will be covered by your plan as long as you are enrolled.
  • Fast, easy claims. Frustration-Free claims, with most filed in minutes. We will fix it, replace it, or reimburse you with an Amazon e-gift card for the purchase price of your product (excluding tax). File at Asurion.com/amazon.
  • No Hidden Fees. For just $16.99 a month + tax you’re covered for up to 5,000 in claims per 12-month period. *THIS PROGRAM IS MONTH-TO-MONTH AND WILL CONTINUE UNTIL CANCELED* Coverage for all products ends 30 days after the plan is canceled. Cancel any time.

Waterpik Aquarius Water Flosser Professional For Teeth, Gums, Braces, Dental Care, Electric Power With 10 Settings, 7 Tips For Multiple Users And Needs, ADA Accepted, White WP-660, Packaging May Vary

4.6 out of 5 stars 146,263 ratings

$79.99 with 20 percent savings $79.99 per count
List Price: $99.99
FREE Returns
Available at a lower price from other sellers that may not offer free Prime shipping.
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.
Color: White
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.
Bundles with this item
{"desktop_buybox_group_1":[{"displayPrice":"$79.99","priceAmount":79.99,"currencySymbol":"$","integerValue":"79","decimalSeparator":".","fractionalValue":"99","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"SeSpuPx8xGLpL4QEV8BcGYAOIgm5IkrSA9%2FXp%2F3UQcJleVhfm317kFbDL7hsDzwdOnQ0uqpJURaQV4JjUVaMeSSvL5ZH6eT4lhZZNc%2BbIv5LCUl2GL6gdCLFo1cOwyvw%2FkhnlD6n%2FCUuPrFnaGa%2FIQ%3D%3D","locale":"en-US","buyingOptionType":"NEW","aapiBuyingOptionIndex":0}]}

Purchase options and add-ons

Brand Waterpik
Power Source Corded Electric
Special Feature Timer, Multiple Pressure Settings, Rotatable Tip, Multiple Operation Modes, Multiple Tips
Product Benefits Removes Plaque, ADA Accepted for Safety and Effectiveness, Gum Health
Unit Count 1 Count

About this item

  • ADVANCED WATER FLOSSING: Aquarius is a fully featured water flosser featuring enhanced pressure with 10 settings for a custom clean, massage mode for gum stimulation, plus a built-in timer/pacer pauses briefly at 30 secs and 1 min to track flossing time.
  • EASY TO USE: Features a large reservoir for 90+ seconds of use, no refilling required. Small maneuverable flossing wand makes it easy to floss all areas including back teeth and includes a convenient water on/off switch.
  • DENTIST RECOMMENDED: Waterpik is the #1 water flosser brand recommended by dental professionals and the first water flosser brand to earn the American Dental Association (ADA) Seal of Acceptance for safety and effectiveness.
  • KEY FEATURES: 7 tips for multiple family members and needs, 10 safe and effective pressure settings, removable 22 oz reservoir (top-rack dishwasher safe for easy cleaning), 90+ secs floss time, 360 tip rotation, 120VAC/60Hz for use in North America only.
  • PROVEN EFFECTIVE: Waterpik water flossers use PrecisionPulse technology to deliver a combination of water pressure and pulsations, removing up to 99.9 percent of plaque bacteria from treated areas that cause gingivitis, cavities, and bad breath.
  • WARRANTY AND SUPPORT: Backed by a 3-year limited manufacturer’s warranty, see manual for details. Waterpik’s Colorado support team is available to help with any product questions or needs.
New to Amazon!
Shop hydrating scalp & hair care | Explore now

Frequently bought together

This item: Waterpik Aquarius Water Flosser Professional For Teeth, Gums, Braces, Dental Care, Electric Power With 10 Settings, 7 Tips For Multiple Users And Needs, ADA Accepted, White WP-660, Packaging May Vary
$79.99 ($79.99/count)
Get it as soon as Wednesday, May 14
In Stock
Ships from and sold by Amazon.com.
Total price: $00
To see our price, add these items to your cart.
Details
Added to Cart
Choose items to buy together.

From the brand


From the manufacturer

Experience healthier Gums, Brighter Teeth & Fresher Breath! Award winning

How to Water Floss in 3 Easy Steps

Fill Resevior

Fill reservoir with warm water

Fill reservoir with warm water and click a flossing tip into the handle.

Lean over sink

Lean over sink

Lean over the sink and place flossing tip in mouth.

Turn on

Turn unit on

Turn unit on, aim the tip along your gumline, and let water flow from your mouth into sink.

Smart Features - Aquarius Water Flosser

Pressure settings

Optimal Control

  • Customize your cleaning power with 10 settings ranging from extra low to extra high
  • Floss Mode provides maximum plaque removal and Hydro-Pulse Massage Mode offers enhanced gum stimulation
  • 1-minute timer pauses briefly at 30 seconds to help track your flossing time

High capacity reservoir

High Volume Reservoir

  • Removable reservoir holds 22 ounces for 90+ seconds of flossing time
  • Add a splash of your favorite mouthwash for an even fresher clean
  • Top-rack dishwasher safe - air drying recommended

Precision flossing wand

Precision Flossing Wand

  • Small, slim handle provides easy access to all areas
  • 360-degree rotating tip reaches your whole mouth, even back teeth
  • Easily stop and start water flow with convenient on/off switch

Compact Design

Compact Design

Height: 10.35 inches (with tip)

Width: 4.7 inches

Depth: 3.8 inches

which tip is right for you?

The Aquarius water flosser comes with 7 tips for a variety of dental needs:

  • 4 Precision (Classic) Tips (JT-100E)
  • 1 Plaque Seeker Tip (PS-100E)
  • 1 Orthodontic Tip (OD-100E)
  • 1 Pik Pocket Tip (PP-100E)

(Additional genuine Waterpik brand flossing tips available separately)

Waterpik Sonic-Fusion 2.0 Professional Flossing Toothbrush
Waterpik Sensonic Complete Care Electric Toothbrush + Water Flosser
Waterpik Aquarius Water Flosser
Waterpik ION Professional Cordless Water Flosser
Waterpik Sidekick Water Flosser
Waterpik Nano Plus Water Flosser
Customer Reviews
4.5 out of 5 stars 18,006
4.5 out of 5 stars 459
4.6 out of 5 stars 146,263
4.2 out of 5 stars 6,452
4.4 out of 5 stars 1,588
4.4 out of 5 stars 7,035
Price $180.13 $199.99 $79.99 $99.99 $127.45 $59.99
Floss Settings 10: Ranging from Extra Low to Extra High 10: Ranging from Extra Low to Extra High 10: Ranging from Extra Low to Extra High 10: Ranging from Extra Low to Extra High 5: Ranging from Low to High ing from Low to High
Removable Water Reservoir Yes, 60+ seconds flossing time, hinged lid Yes, 90+ seconds flossing time, hinged lid Yes, 90+ seconds flossing time, hinged lid Yes, 90+ seconds flossing time, hinged lid Yes, 60+ seconds flossing time, inverts over unit Yes, 60+ seconds flossing time, inverts over unit
# of Tips/Brush Heads 2 Flossing Brush Heads 5 Tips, 2 Brush Heads 7 Tips 7 Tips 1 Stylus Tip 4 Tips
Flossing Tips 1 Compact Flossing Brush Head, 1 Full Size Flossing Brush Head 2 Precision (Classic), 1 Orthodontic, 1 Plaque Seeker, 1 Implant Denture 4 Precision (Classic), 1 Orthodontic, 1 Pik Pocket, 1 Plaque Seeker 2 Precision (Classic), 1 Orthodontic, 1 Plaque Seeker, 1 Pik Pocket, 1 Tongue Cleaner, 1 Implant Denture 1 Flossing Stylus 2 Precision (Classic), 1 Orthodontic, 1 Plaque Seeker
Electric Toothbrush Included Yes, combined with water flosser Yes, separate from water flosser No No No No
Water On/Off on Handle No
Rechargeable Toothbrush only; water flossing uses electric power Toothbrush only; water flossing uses electric power No No No
Accessories Toothbrush travel case Toothbrush travel case Tip storage case Travel bag no data
Voltage Global Global North America Only Global Voltage Compatible Global North America Only
Dimensions with tip/brush head (inches) H x W x D 10.88 x 5.25 x 6.0 10.50 x 5.25 x 5.5 10.35 x 4.70 x 3.8 7.56 x 6.2 x 6.13 4.84 x 5.70 x 5.5 8.50 x 5.0 x 4.5

Product Description

The Waterpik Aquarius water flosser features a compact, contemporary design and advanced water flossing technology for maximum performance. It comes with 7 flossing tips for a variety of dental needs and multiple users, a convenient one-minute timer with 30-second pacer to ensure thorough water flossing of all areas, and a removable water reservoir with 90+ seconds of flossing time. The special 360-degree rotating tip handle easily reaches your whole mouth, even back teeth. The Waterpik Aquarius water flosser removes up to 99.9% of plaque bacteria that causes gingivitis, cavities, and bad breath from treated areas and is clinically proven up to 2X as effective as string floss for removing bacterial plaque and improving gum health. Waterpik is the #1 water flosser brand recommended by dental professionals, and the Waterpik Aquarius water flosser is accepted by the American Dental Association (ADA) for safety and effectiveness. Backed by a 3-year manufacturer's limited warranty, see product manual for details.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 3.8 x 4.7 x 10.3 inches; 1.46 Pounds
  • Item model number ‏ : ‎ WP-660/660C
  • Department ‏ : ‎ unisex-adult
  • UPC ‏ : ‎ 056310179752
  • Manufacturer ‏ : ‎ Water Pik, Inc.
  • ASIN ‏ : ‎ B00HFQQ0VU
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.6 out of 5 stars 146,263 ratings

Product guides and documents

Compare with similar items

This Item
Waterpik Aquarius Water Flosser Professional For Teeth, Gums, Braces, Dental Care, Electric Power With 10 Settings, 7 Tips For Multiple Users And Needs, ADA Accepted, White WP-660, Packaging May Vary
Waterpik Aquarius Water Flosser Professional For Teeth, Gums, Braces, Dental Care, Electric Power With 10 Settings, 7 Tips For Multiple Users And Needs, ADA Accepted, White WP-660, Packaging May Vary
Recommendations
Waterpik ION Professional Water Flosser, Rechargeable and Portable for Teeth, Gums, Braces, 10 Settings, 7 Flossing Tips For Multiple Users And Needs, ADA Accepted, WF-12 White, Packaging May Vary
 
Waterpik Aquarius Professional Water Flosser Designer Series, Blue, WP-673
 
Waterpik Classic Jet Tips JT-100E 2 ea (Pack of 4)
 
Waterpik Cordless 1100 Rechargeable Portable Water Flosser for Teeth Cleaning and Flossing, Travel, Braces Care, Healthier Gums, Waterproof for Shower, ADA Accepted, WF-30CD White, Packaging May Vary
Details
Added to Cart
spCSRF_Treatment
Details
Added to Cart
spCSRF_Treatment
Details
Added to Cart
spCSRF_Treatment
Details
Added to Cart
spCSRF_Treatment
Details
Added to Cart
spCSRF_Treatment
Price-20% $79.99
List:$99.99
$99.99$130.00$59.95$47.99
Price Per Unit$79.99 / count$99.99 / count$130.00 / count$7.49 / count$47.99 / count
Delivery
Get it as soon as Wednesday, May 14
Get it as soon as Wednesday, May 14
Get it as soon as Wednesday, May 14
Get it as soon as Wednesday, May 14
Customer Ratings
Sold By
material
tank volume
power source

Important information

Safety Information

Do not direct water under the tongue, into the ear, nose or other delicate areas. Only use tips and accessories recommended by Water Pik, Inc. Use this product only as indicated in the instruction manual or as recommended by your dental professional.

Directions

1. Fill reservoir with warm water and click tip into handle 2. Lean over sink and place in mouth 3. Turn unit ON, aim the tip along gumline at a 90-degree angle, pausing briefly between teeth 4. Close lips enough to prevent splashing while allowing water to flow from your mouth into the sink 4. Floss inside and outside of upper and lower teeth 5. When finished, empty any remaining water from the reservoir NOTE: First-time users should start at lowest pressure setting and gradually increase over time.

Legal Disclaimer

no returns.

Customer reviews

4.6 out of 5 stars
146,263 global ratings

Review this product

Share your thoughts with other customers

Customers say

Customers find the water flosser effective, powerful, and excellent at cleaning teeth, with one noting it leaves their mouth feeling like it was cleaned by a dental hygienist. They appreciate its ease of use, setup, and value for money, while also highlighting its benefits for overall oral health. The size receives mixed feedback, with some finding the reservoir appropriate while others note it requires space in the bathroom. Customers disagree on the noise level, with some finding it quieter than previous models while others describe it as extremely noisy.

AI-generated from the text of customer reviews

12,214 customers mention "Effectiveness"10,898 positive1,316 negative

Customers find the water flosser effective and powerful.

"...It was a good unit, at least for experienced water flossers who travel. But it wasn't right for me...." Read more

"Strong stream for cleaning and can to floss also Works well work the cost" Read more

"...But other than those two issues, my Ultra worked flawlessly, I never had to replace the hose or the handle as some owners had to, the on-off switch..." Read more

"...using it, and going from my annual checkup at the dentist, the results were amazing...." Read more

5,709 customers mention "Cleaning ability"5,064 positive645 negative

Customers praise the water flosser's cleaning ability, noting it effectively removes food particles and leaves their teeth feeling clean and refreshed, with the tubing being easy to clean.

"...So I returned it, added $20 and bought this one. BEST DENTAL HYGIENE PURCHASE I'VE EVER MADE...." Read more

"Strong stream for cleaning and can to floss also Works well work the cost" Read more

"...at 30 seconds of use and another at 60 seconds, this is good to pace your cleaning as it should take about 30 seconds to clean each part of the mouth..." Read more

"...It’s easy to use, powerful, and leaves my mouth feeling cleaner than regular floss ever has...." Read more

3,611 customers mention "Ease of use"3,200 positive411 negative

Customers find the water flosser easy to use and set up, with one customer noting that it comes with good instructions.

"...The way the basic tips are bent make it very easy to direct carefully. There are only two minor "I wish this were different" issues...." Read more

"...both fingers in, on the Aquarius is a protruding knob, very easy to reach and to manipulate, way better I think, easier to find when in use if needed..." Read more

"...Again it was easy to use, and starting with a low pressure number, I quickly got used to the pulsating action and within a week was at the highest..." Read more

"...It’s easy to use, powerful, and leaves my mouth feeling cleaner than regular floss ever has...." Read more

2,209 customers mention "Value for money"1,645 positive564 negative

Customers find the water flosser to be worth the money, with one customer noting it's a small price to pay for better oral health.

"...doing a lot of research I have found that Amazon gives the absolute best price for the WaterPik...." Read more

"...Learn from my mistake, this machine is worth every penny." Read more

"...I found it is quieter than the old top of the line model. It was a good price here compared to direct from the company, who used to give promotional..." Read more

"...flaw of the WP-100, its reservoir valve consist of a rubber piece, very cheap in my opinion, which eventually gives up and start leaking after a few..." Read more

1,895 customers mention "Water quality"1,515 positive380 negative

Customers are satisfied with the water flosser's performance, with one customer noting the adjustable water strength settings and another mentioning the pleasant pulsating water flow.

"...The small hand water controller unit on the hose allows me to turn the water flow off when I need to and MUCH more precise direction of water at the..." Read more

"...If you don't mind the noise, though, this is a solid Waterpik that does it's job well." Read more

"...on/off toggle switch so that once you toggle it on, it keeps flowing without finger pressure, until you toggle it off;..." Read more

"...But if these are the tradeoffs you need for high power and great water flow, it's worth it. But it's noisy...." Read more

1,859 customers mention "Gum health"1,859 positive0 negative

Customers report that the water flosser improves their teeth and gum health, enhances their dental care routine, and is perfect for maintaining oral health on the go.

"...(See below.). But simply put, this is the best investment in dental hygiene I've ever made. Period. I'll never be without one again...." Read more

"...Water Flosser for a bit now, and overall, it's a great addition to my oral care routine...." Read more

"...34;Removes bacteria and debris from hard to reach areas around dental restorations."..." Read more

"...I’ve noticed real improvements in my gum health since I started using it, and even my dentist and hygienist commented on the difference...." Read more

2,375 customers mention "Size"1,603 positive772 negative

Customers have mixed opinions about the size of the water flosser: while some appreciate that the reservoir is just the right size and it fits easily into carry-ons, others find it not quite big enough and struggle to find counter space.

"...The small hand water controller unit on the hose allows me to turn the water flow off when I need to and MUCH more precise direction of water at the..." Read more

"...multiple pressure settings are a huge plus - you can adjust it to whatever feels comfortable, whether you want a gentle clean or something more..." Read more

"...Using it is a bit clunky. The unit is large making it awkward to fill near shallow sinks, it takes up a lot of space, and it needs to be close to an..." Read more

"...it, I simply keep the pick itself on the hose unit which fits easily on the hose-holster...." Read more

2,288 customers mention "Noise level"689 positive1,599 negative

Customers have mixed opinions about the water flosser's noise level, with some finding it quieter than previous models while others report that it is extremely noisy.

"...There are only two minor "I wish this were different" issues. One, it's noisy. Not horrible, but still a bit loud...." Read more

"...The only real downside? It's pretty loud, and the tube vibrates quite a bit while in use, which can be a little annoying...." Read more

"...as or more powerful than the WP-100 but it runs better, it sounds less stressed. Same or better results with less noise...." Read more

"...My last model lasted 15 years. Reviews said this is noisy and messy. I found it is quieter than the old top of the line model...." Read more

One awesome waterpik!
5 out of 5 stars
One awesome waterpik!
Have two kids with braces and the dentist recommended one. Couldn’t be happier with the purchase, it is a bit messy but that just seems to come with the territory of waterpiking. It is a little noisy but I guess that is also to be expected. If you crank it up your gums will bleed.
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

  • Reviewed in the United States on April 6, 2024
    For those that don't like reading, I'll cut to the chase before offering some background.

    This is my second water flosser. (See below.). But simply put, this is the best investment in dental hygiene I've ever made. Period. I'll never be without one again.

    Background. During some recent dental work (some cavities crept in), my (new) dentist pointed out that I wasn't being as effective with brushing as I needed to be. He did two things. First, he taught me (at 73) how to brush more effectively around my gum lines using a soft bristle G.U.M. brush that has uneven bristle surface (not flat cut, but some tiny fine bristles sticking up from the flat surface).

    We reviewed flossing. But flossing has always been challenging for me because I have a smaller mouth (for a man) with some crowding in my teeth. It's hard for me to get my hands holding floss in there. I bought some of the little plastic handles with a fork at the end with floss between the tongs. They make flossing easy, but even still, it doesn't work 100%.

    Then he asked if I had a Waterpik. I said, "No, but I'll buy one tonight."

    In in the interest of saving some bucks, I first bought a portable, cordless model from another maker (reviewed elsewhere). It was a good unit, at least for experienced water flossers who travel. But it wasn't right for me. Only two water pressure levels -- fast and faster -- hard to hold and direct the water stream, etc.

    So I returned it, added $20 and bought this one.

    BEST DENTAL HYGIENE PURCHASE I'VE EVER MADE.

    The small hand water controller unit on the hose allows me to turn the water flow off when I need to and MUCH more precise direction of water at the gum lines and between teeth without water flying all over the bathroom. I was able to start with a very slow flow (2 - 3) as I learned the technique. I'm now up to 5 - 6.

    The larger (by 100%) water reservoir means I can take my time. The way the basic tips are bent make it very easy to direct carefully.

    There are only two minor "I wish this were different" issues. One, it's noisy. Not horrible, but still a bit loud. But I'm used to that now.

    Second, I wish the "handle water flow on/off" was a push button instead of a slide switch. The switch is a little tricky to push down when the handle is wet and I'm leaning over the sink. But again, it's a MINOR issue. I'm happy it has the separate control switch so I can pause the water flow with the main pump running at any time, including before I begin and when I'm finished before removing the tip from my mouth.

    I'm using this device multiple times per day. After every meal, before I brush, and sometimes even just after a snack without brushing. I capture the water in a plugged sink to examine it before draining down the drain. I gotta say, I'm sometimes amazed at how much food washes out.

    Then I brush, and my teeth feel cleaner than they ever have after just brushing.
    79 people found this helpful
    Report
  • Reviewed in the United States on April 28, 2025
    Color: WhiteVerified Purchase
    Strong stream for cleaning and can to floss also Works well work the cost
    3 people found this helpful
    Report
  • Reviewed in the United States on February 10, 2015
    Color: WhiteVerified Purchase
    Looking at the reviews, there seems to be a consistent effort by what I take are some owners of the venerable Waterpik WP-100 Ultra to trash this new model and portrait it as inferior to the WP-100. I don't think this is the case, the WP-660 is an improvement over the WP-100 in many ways and I'll tell you why later. The funny thing is that when I bought my WP-100 about six years ago, there were some reviews from what I take were owners of the revered WP-60 Classic trashing the WP-100. I take some people prefer the old to the new and that's OK. But I think some reviewers are being unfair to the Aquarius

    I owned a WP-100 that lasted for little over six years, used almost every day by two people, those are a lot of days so the WP-100 is an outstanding product. I did have to replace the water reservoir once due to the cheap rubber valve mechanism -improved on the Aquarius as you will see- that failed after three years of use and started leaking. Also, the hook for the handle broke -also improved on the Aquarius- and it was very difficult if not impossible to hang the handle onto the Waterpik body, I had to makeshift a Velcro handle that looked terrible. Googleing around I was surprised to find that this is a common issue with the WP-100, some owners have replaced the entire unit just because of a broken handle as there is no spare part available from Waterpik. Boomer

    But other than those two issues, my Ultra worked flawlessly, I never had to replace the hose or the handle as some owners had to, the on-off switch never failed and it worked the same way it was when new until an accident damaged the power-cord and it stopped working. Given its state with the handle hook and its age, I thought about self-repairing it but then I decided it was time for a new unit. At first and reading all those pro-WP-100 anti-WP-660 reviews I was tempted to get another WP-100, but the price of the Aquarius was about the same as the Ultra so I decided to give it a try

    I'm glad I did. The first thing you notice with the Aquarius is its modern look and high quality materials, all white and clear, and gorgeous, a significant design improvement over the WP-100. It is also lighter, which some can argue is a good thing -like me- and some can argue it is a bad thing because it "feels" cheap, which is also a valid point. The important thing is that its weight doesn't compromise its operation in any way, it won't tip-off when used nor will slide or be unstable, it is just lighter. It might be due to the use of cheaper materials on the pump as some have argued here, or just lighter materials, an overall technological improvement rather than cheapening the unit off. I guess time will tell which one is more durable, or we will have to open both units and compare its guts to get a final answer. So, why is the Aquarius better than the WP-100, other than it looks?

    -The WP-660 is less noisy and runs smother than the WP-100, you notice this right away. This with no compromise to the water pressure, the pressure is steady, as or more powerful than the WP-100 but it runs better, it sounds less stressed. Same or better results with less noise.

    -The hook for the handle was replaced by a sturdier piece and a different design to hold the handle, which reduces the pressure on the piece. With the WP-100, it was very easy to push the handle all the way down the hook, either by accident or just because of its design, stressing the hook and eventually breaking it; there was nothing to stop the handle to slide all the way down. As said, mine broke. That was a poor design, fixed on the Aquarius; now you just put the handle on the holder, it cannot be pushed all the way down. Some have argued that makes it difficult to handle the hose, but I didn't find any issues, the hose juts hang there by simple gravity, it doesn't tangle or interfere with the unit in any way

    -The reservoir valve was replaced by a metal spring mechanism. This was a another design flaw of the WP-100, its reservoir valve consist of a rubber piece, very cheap in my opinion, which eventually gives up and start leaking after a few years. As said before, the only way to fix it is by buying an entire new reservoir as the little rubber piece is not available alone, which means not only paying way more but also a waste of resources. In contrast, the WP-660 has a stainless steel spring with a plastic cap, that appears way more durable and also a much better and higher quality solution. Only time will tell but it seems it will last longer than the one in the WP-100

    -The knob to graduate the pressure is easier to operate. The WP-100 has a hole to put both fingers in, on the Aquarius is a protruding knob, very easy to reach and to manipulate, way better I think, easier to find when in use if needed. And also more ergonomic

    -The Aquarius handle has an on-off switch that actually works. The WP-100 has that dreadful push button on the handle that you need to press constantly to stop the flow of water, doesn't stop it completely and also causes the Waterpik to make a noise like the pump is being damaged while the pressure is reverted. Not good at all, it was a poor solution at best, a useless feature at worst, it just didn't work. On the WP-660, there is an actual on-off button; in fact the correct way to operate this new Waterpik is to turn it on the base first, then turn it on via the handle when you already have the tip inside your mouth ready to go, the water doesn't come out unless you turn the handle on. This is much better than having to reach the switch on the base unit with the tip in your mouth or having to hold into the appalling pressure cutting button on the handle and then release it. All this while water was still coming out of the tip as the button didn't cut the water flow completely.

    -The pace timer. This feature is non-existent on the Ultra, and I realized it is very helpful. I use the Waterpik first on the upper section of the mouth, outside-inside and then move to the lower section, in-out and I'm done. At a pressure level of 8, the water in the reservoir, at full capacity, should last little less than 90 seconds. The Aquarius will give you a very short flow pause at 30 seconds of use and another at 60 seconds, this is good to pace your cleaning as it should take about 30 seconds to clean each part of the mouth, up and down, and then you have an extra 20 seconds to touch-up. This avoids you having to be periodically peaking over to the reservoir to see how much water is left and instead allow you to concentrate on the cleaning and doing the job properly

    -The reservoir cover is now part of the unit. If you are like my mother in law that misplaces everything - sorry mom, I still love you-, chances are you have misplaced the reservoir cover of the WP-100 (as my mother in law did). This cover also contains the tips so it can be kind of an inconvenience to lose it. On the WP-660, the cover is attached with a hinge mechanism to the body of the Waterpik, no way to lose it. The tips are now stored on the unit itself, behind the reservoir

    The rest is about the same as the WP-100, it comes with a bunch of tips from which you will probably only use the classic jet, and a 3 years warranty. It also includes a gum massaging mode which is pointless as you can achieve the same results by regulating the pressure knob. One disadvantage to the WP-100 is that you can only store two tips on the unit and not four, but again if you are like me that use only one, this is not an issue. But it might be for some users, if you have braces for example or like to regularly use the one designed for root canal maintenance (the Pik Pocket). One thing that was bad on the WP-100 and remain as bad on the WP-660 is cable management, there is no place to wrap the cable or at least a Velcro band included to deal with the cable, this lack of cable management is in part responsible for the damage to my WP-100 power cord, the cord is just hanging there. A needed improvement for the next design, please take note Waterpik

    Overall, I see no disadvantages when compared with the WP-100 and instead see many advantages. Until the unit has more years in the market, speculating about its durability without real facts is pointless at this time, so far the Aquarius works the same or better than the Ultra so it's higher price is justifiable. And you can even get a good deal and get it at the same price or a little cheaper than the Ultra, which is a real bargain
    1,077 people found this helpful
    Report
  • Reviewed in the United States on April 1, 2025
    Color: WhiteVerified Purchase
    I've been using the Waterpik Aquarius Water Flosser for a bit now, and overall, it's a great addition to my oral care routine. The multiple pressure settings are a huge plus - you can adjust it to whatever feels comfortable, whether you want a gentle clean or something more powerful. The rotating tip makes it super easy to reach the back of your teeth, which is a big win.

    The 22 oz reservoir is just the right size to get through a full flossing session without needing a refill, which I really appreciate. It also has a massage mode, but to be honest, I don't see myself using that feature much.

    I also have a very small single sink vanity and the size of this is just right to fit on the counter along with my toothbrush.

    The only real downside? It's pretty loud, and the tube vibrates quite a bit while in use, which can be a little annoying. If you don't mind the noise, though, this is a solid Waterpik that does it's job well.
    15 people found this helpful
    Report

Top reviews from other countries

Translate all reviews to English
  • yousufd
    4.0 out of 5 stars Waterpik
    Reviewed in the United Kingdom on July 2, 2022
    Not suitable for travel as it works on dc
  • Edgar
    5.0 out of 5 stars Limpia muy bien
    Reviewed in Mexico on February 19, 2025
    Ya tenemos más de un año con el aparato y sigue funcionando, lo recomendamos
    Report
  • Let Me Say This:
    5.0 out of 5 stars Fantastic gadget for the whole family.
    Reviewed in Canada on January 3, 2025
    The Waterpik Aquarius Water Flosser has been such a helpful addition to our family’s dental routine. With 10 pressure settings, everyone from my husband to the kids can find their perfect level - no more complaints about flossing being too hard or annoying!

    I also love that it comes with seven different tips, so we can each have our own, and it works great for different needs. Whether it’s braces, sensitive gums, or just a good deep clean, this flosser handles it all. The tank is a good size and lasts long enough for a full session without needing a refill.

    It’s not the quietest gadget in the world, but honestly, that’s a small price to pay for how clean my teeth feel after using it. It’s so much easier than regular floss, and it feels like a little mini spa treatment for your gums. Definitely worth it for the whole family!
  • Jean-Yves
    2.0 out of 5 stars Mauvaise surprise.
    Reviewed in France on November 2, 2021
    Prise américaine. Pas de prise européenne dans le colis.
    En 120 volts.
  • Chelsea W.
    5.0 out of 5 stars Great Product
    Reviewed in Canada on April 6, 2025
    I've had this for forever now and it's still working as well as it was the day I got it. It's comfortable, convenient and easy to use.

Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.

Product Summary: Waterpik Aquarius Water Flosser Professional For Teeth, Gums, Braces, Dental Care, Electric Power With 10 Settings, 7 Tips For Multiple Users And Needs, ADA Accepted, White WP-660, Packaging May Vary

From Waterpik

4.6 out of 5 stars, 146,263 ratings

Customer reviews

4K+ bought in past week

Price

One-time purchase: $79.99 ( $79.99 / count) 20% Savings

List Price: $99.99

Purchasing options

Other sellers

Other sellers

About this Item

  • ADVANCED WATER FLOSSING: Aquarius is a fully featured water flosser featuring enhanced pressure with 10 settings for a custom clean, massage mode for gum stimulation, plus a built-in timer/pacer pauses briefly at 30 secs and 1 min to track flossing time.
  • EASY TO USE: Features a large reservoir for 90+ seconds of use, no refilling required. Small maneuverable flossing wand makes it easy to floss all areas including back teeth and includes a convenient water on/off switch.
  • DENTIST RECOMMENDED: Waterpik is the #1 water flosser brand recommended by dental professionals and the first water flosser brand to earn the American Dental Association (ADA) Seal of Acceptance for safety and effectiveness.
  • KEY FEATURES: 7 tips for multiple family members and needs, 10 safe and effective pressure settings, removable 22 oz reservoir (top-rack dishwasher safe for easy cleaning), 90+ secs floss time, 360 tip rotation, 120VAC/60Hz for use in North America only.
  • PROVEN EFFECTIVE: Waterpik water flossers use PrecisionPulse technology to deliver a combination of water pressure and pulsations, removing up to 99.9 percent of plaque bacteria from treated areas that cause gingivitis, cavities, and bad breath.
  • WARRANTY AND SUPPORT: Backed by a 3-year limited manufacturer’s warranty, see manual for details. Waterpik’s Colorado support team is available to help with any product questions or needs.

Product Description

The Waterpik Aquarius water flosser features a compact, contemporary design and advanced water flossing technology for maximum performance. It comes with 7 flossing tips for a variety of dental needs and multiple users, a convenient one-minute timer with 30-second pacer to ensure thorough water flossing of all areas, and a removable water reservoir with 90+ seconds of flossing time. The special 360-degree rotating tip handle easily reaches your whole mouth, even back teeth. The Waterpik Aquarius water flosser removes up to 99.9% of plaque bacteria that causes gingivitis, cavities, and bad breath from treated areas and is clinically proven up to 2X as effective as string floss for removing bacterial plaque and improving gum health. Waterpik is the #1 water flosser brand recommended by dental professionals, and the Waterpik Aquarius water flosser is accepted by the American Dental Association (ADA) for safety and effectiveness. Backed by a 3-year manufacturer's limited warranty, see product manual for details.

Options Available

Color

  • Black
  • Blue
  • Gray
  • White
  • White + Therabreath
Browse all available options

Important Information

Safety Information

Do not direct water under the tongue, into the ear, nose or other delicate areas. Only use tips and accessories recommended by Water Pik, Inc. Use this product only as indicated in the instruction manual or as recommended by your dental professional.

Directions

1. Fill reservoir with warm water and click tip into handle 2. Lean over sink and place in mouth 3. Turn unit ON, aim the tip along gumline at a 90-degree angle, pausing briefly between teeth 4. Close lips enough to prevent splashing while allowing water to flow from your mouth into the sink 4. Floss inside and outside of upper and lower teeth 5. When finished, empty any remaining water from the reservoir NOTE: First-time users should start at lowest pressure setting and gradually increase over time.

Legal Disclaimer

no returns.

Product Guidance & Documents

User Guide (PDF)

User Manual (PDF)

Feedback

Did you find this product summary feature useful?

Thank you for your feedback
Thank you for your feedback. You selected "Yes, it is useful"
Thank you for your feedback. You selected "No, it is not useful"
Product summary presents key information. Close to see all product details.