Search  for anything...
Waterpik

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

  • Based on 150,757 reviews
Condition: New
Checking for the best price...
$79.98 Why this price?
Save $20.01 was $99.99

Buy Now, Pay Later

As low as $13.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Sunday, Mar 15
Order within 50 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: White


Features

  • 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 manufacturers warranty, see manual for details. Waterpiks Colorado support team is available to help with any product questions or needs

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.

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


Date First Available ‏ : ‎ December 20, 2013


Manufacturer ‏ : ‎ Water Pik, Inc.


Best Sellers Rank: #486 in Health & Household (See Top 100 in Health & Household) #2 in Power Dental Flossers


#2 in Power Dental Flossers:


Customer Reviews: 4.6 4.6 out of 5 stars (153,954)


Brand Name: Waterpik


Product Benefits: ADA Accepted for Safety and Effectiveness, Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque


Model Number: WP-660/660C


Manufacturer Warranty Description: 3 Year Limited Manufacturer's Warranty, see manual for details


Model Name: Aquarius Water Flosser


Manufacturer: Water Pik, Inc.


UPC: 056310179752


Global Trade Identification Number: 52


Manufacturer Part Number: WP-660


Included Components: 1 Orthodontic Tip (OD-100E), 1 Pik Pocket Tip (PP-100E), 1 Plaque Seeker TIp (PS-100E), 1 Stationary Toothbrush (TB-100E), 3 Classic Jet Tips (JT-100E), Waterpik Aquarius Water Flosser


Item Weight: 1.46 Pounds


Item Nype Name: Waterpik Performance Water Flosser


Power Source: Corded Electric


Additional Features: Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Rotatable Tip, Timer


Compatible Refills: waterpik_aquarius_water_flosser_wp_667


Unit Count: 1 Count


Item Dimensions: 3.8 x 4.7 x 10.3 inches


Tank Volume: 22 Fluid Ounces


Recommended Uses For Product: Daily Cleaning, Daily Plaque Removal, Deep Cleaning, Gum Health


Target Use Body Part: Teeth


Specification Met: ADA


Color: White


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great water flosser.
Color: White
Great water flosser. Great pressure which is adjustable. Good size water tank. Comes with several different tips. Has handy on/off control on handle. Upgrade from another model I have. Great price/value. Works great.
Reviewed in the United States on March 6, 2026 by c5jim
    • Worthwhile long term purchase.
Color: White
I bought this back in 2019 and it’s still working effectively today. My oral hygiene journey has been sporadic at best but lately I’ve been trying to be better and I can say that the claims that it reduces gum bleeding are true accurate. I tried traditional flossing for the first time in a while recently and did not bleed at all. Independent studies show that the claims that it’s 2x more effective than string flossing are overblown but they do hold that water pic flossers(approved by the ADA) are at least AS effective as string flossing when used properly, if not marginally better. Pros: It’s easier, more comfortable, and faster(for me) to use than traditional flossing. It does reduce gum bleeding, and the product has lasted for at least 6 full years without a noticeable decline in pressure /functionality. All these mean that I actually remember to use it which is the biggest benefit for me. Cons: it leaks. I don’t know from where but if I keep water in the reservoir it creates a puddle now. It’s manageable if you fully empty it each time but it is somewhat annoying. I don’t recall if this has always been an issue. It’s louder than I would like it to be. Also an important consideration when using is how you plan to keep the machine sanitary because this can be way less sanitary than string flossing if you don’t clean it regularly. All in all, a worthwhile long term purchase for me. ... show more
Reviewed in the United States on January 24, 2026 by Chez T. Crafts
    • This great old classic still is essential for dental health - buy it - use it!
Color: White
In this throwaway society where appliances, especially electronics, are considered obsolete sometimes before the batteries need recharging, it’s amazing to find one product that is still virtually unchanged after over 50 years on the market. It hasn’t needed any upgrades, and is still basically the exact same function and design as it was way back when. I particularly find this gratifying when I just learned, for example, that Apple will be issuing an upgrade on their OS system for their IPhone, which will basically make any of their phones from the 4S and below obsolete, so that, even though yours may work perfectly, technically, you would have to throw it away and spend many hundreds of dollars for a new one! This appliance that has stood the test of time is the WaterPik. I remember my father buying one of the first ones, per his dentist’s recommendation back in the 1960s. In those days there was something about it that seemed almost futuristic. Like something you would see someone using in outer space in a SCI Fi flick. However it’s simple design and function was enormously easy to master, which is a big deal for me back then as little kid! It is also quite uncommon, when it came to devices that supposedly promised some kind of improved health, to find that everything they say about the produce… is true. I remember year after using it, and going from my annual checkup at the dentist, the results were amazing. I stopped using the WaterPik years ago, and just depended on regular brushing and flossing. However now that I’m not such a young kid, even with diligent dental hygiene, you’re gums will begin to do some receding on their own, purely by the evil tyrant known as “aging”. My scores for my gums receding were getting a bit worrisome, in the last few dental checkups, and again my dentist recommended that I should also use a WaterPik. To be honest I was surprised they still made them. I felt, like most everything in the world, these had fallen out of style or favor and we’re no longer used. My dentist however told me they were perhaps one of the best dental hygiene Home Devices ever invented and he was sorry to see that most people didn’t use them anymore. I told him that I flossed religiously, but he told me that the WaterPik gives an extra much needed work-out to the gums keeping them healthy and strong and reducing gum receding. So of course I went right onto Amazon, and found this unit. It was basically the same as I remembered, though they have streamlined the device a bit. 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 level (yes, as “Spinal Tap” guitarist Nigel Tufnel would say: “it goes to eleven!”). The unit is actually a bit quieter than the original with an easier water reservoir system and a coiled hose which makes placement back on its “holster” a lot easier. It also has several holders for each individual pick if more than one of you is using it. Since I’m the only one who uses it, I simply keep the pick itself on the hose unit which fits easily on the hose-holster. Putting it back in its little holder which is situated behind the water reservoir is a little awkward, and frankly if you’re the only one using it there’s no reason to just keep it attached. So on to the punch line. After only six months of use, I went back for my dental checkup, and went through the rating test for gum receding, and found that all my numbers went up 50 to 70%! My dental hygienist, who does the tests, was so excited that she literally ran into the hall to show others, like a proud mother showing off her son’s report card. I feel like a little boy again, and was just a little upset that they no longer give out lollipops as rewards! One thing my dentist and dental hygienist did tell me is that if you use the WaterPik, you should continue to floss, since there are things that the actual floss does between your teeth which a WaterPik cannot. And of course things that the WaterPik can do that flossing doesn’t. So the combination of the two is extremely important. I’m at the age where friends are beginning to tell me about real trouble with their teeth, and how many are getting bridges and implants, and in one case even dentures, since their gums have receded so badly that their original teeth had to be removed (and we’re talking about folks in their late 40’s to early 60’s here, not ancient people). So I cannot stress hard enough how important something like a WaterPik is. And also, how important it is to start this kind of dental hygiene when you are young. For me, especially as you get older, there is nothing more constantly prevalent than when you have bad teeth. I don’t think anything else destroys your quality of life more than trouble with your teeth and the consequences it causes. By the way, after doing a lot of research I have found that Amazon gives the absolute best price for the WaterPik. Of course it arrived within days and like all other products has a great return policy. ... show more
Reviewed in the United States on July 11, 2016 by Julius Forte
    • Mostly good experience, but the noise is loud and the slide button is hard to feel while using
Color: White
It's taken me a few days to really get the hang of using this unit, but once I got used to it, I really like it. It's a bit noisy when you run it, but it does a great job of cleaning between your teeth. You still need to use traditional floss to complete your dental care routine, but the water flosser does a great job of getting rid of the soft plaque and food particles you may have. It also feels great on my gums. I've gradually upped the setting from '5' to '8', and after having it squirt a few times into the corner of my inside mouth, I've decided that was strong enough. The assortment of attachments that come with the unit are overwhelming. I decided to start with the attachment that has some bristles on the end of it, and it seems to be a good one for me. I like that the bristles help you figure out where the end is pointed at. It takes some experimenting to figure out how best to use it. I've tried keeping my head in one position while using it on the inside of my gums and the outsides of my gums. I still don't have a consistent method, but just kind of do whatever keeps the water from running into my beard as best I can. Besides the noise, the other annoyance I've found is that the slide button on the wand is a bit tough to feel and figure out how to slide it to turn the unit on and off. I tend to do one side of my mouth, then turn the wand off while I angle my head another way to do the other side of my mouth. The first few times I was doing this, while feeling for the button I'd end up accidentally hitting the button that disconnects the nozzle attachment from the wand, making a mess. I've learned to keep my thumb on the off/on slide button so I can quickly turn it off when I want to. ... show more
Reviewed in the United States on February 17, 2026 by EJ Honda
    • Impressive Results!
Color: White
Works! Absolutely worth the investment to bring my gums back to health. My next dental visit, the hygenist was surprised by how much better my gums and teeth looked. Not a travel-friendly kit, but the machine was easy to set up and use.
Reviewed in the United States on March 6, 2026 by Stephen
    • Great Dental Flosser
Color: Blue
Works very well for daily use. This has replaced a rechargeable unit with a bad battery. Wide range of pressure adjustment with plenty of water capacity.
Reviewed in the United States on March 6, 2026 by Totenstille.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...