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Availability:
Only 3 left in stock, order soon!
Arrives
Sunday, Oct 25
Recently Viewed
Color: White
Number of Items: 1
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 Aquarius uses PrecisionPulse technology to deliver a combination of water pressure and pulsations, removing up to 99.9 percent of plaque bacteria from treated areas that causes gingivitis, bleeding gums, 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 (WP-660) is designed for a wide range of users seeking a more effective and convenient way to maintain daily gum health and oral hygiene. It is especially ideal for people with braces, implants, bridges, or crowns, as it helps clean areas that traditional floss often cannot reach. Those with sensitive or bleeding gums can benefit from its adjustable pressure settings, allowing them to start at the lowest level and gradually increase intensity as gum health improves. It is also a great alternative for individuals who find traditional string floss difficult or cumbersome to use. The unit is family-friendly, featuring 7 color-coded tips so multiple users can safely share the same device, and it is suitable for children ages 6+ when used under adult supervision, beginning on the lowest setting. Designed for convenience, it requires just one minute per day, making it easy to incorporate into even the busiest routines. The 7 specialty flossing tips address a variety of dental needs (orthodontics, periodontal pockets, dental work). The 1-minute timer with 30-second pacer ensures thorough water flossing of all areas, and a removable water reservoir with flip-top lid makes it easy to fill. The special 360-degree rotating tip handle easily reaches your whole mouth, even back teeth. This electric plug-in countertop model measures 4.7 x 10.35 x 3.8 with tip at the base (WxHxD inches). The Waterpik Aquarius water flosser removes up to 99.9% of plaque bacteria that causes gingivitis, bleeding gums, 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 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: #721 in Health & Household (See Top 100 in Health & Household) #3 in Power Dental Flossers
#3 in Power Dental Flossers:
Customer Reviews: 4.6 4.6 out of 5 stars (158,559)
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
Included Components: 1 Orthodontic Tip (OD-100E), 1 Pik Pocket Tip (PP-100E), 1 Plaque Seeker TIp (PS-100E), 4 Precision Tips (JT-100E), Waterpik Aquarius Water Flosser
Item Nype Name: Waterpik Performance Water Flosser
Item Weight: 1.5 pounds
Manufacturer Part Number: WP-660
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, Oct 25
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: White
Number of Items: 1
At first I was concerned it was returned when I opened it , since it is a hygienic product. I inspected, and it did not seem used. I waited to write the review to see the results after using. I love it! My teeth and mouth feel so clean and refreshing after I use it. It is very loud, you get to ignore that after using it and it does a good job. I also like you have a switch to stop the flow of water when you want to, otherwise you will have water squirting all over. It’s easy to use . I recommend.
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Reviewed in the United States on October 9, 2026 by Patricia
Color: White
Number of Items: 1
ASTONISHING (to me, anyway) HEALTH UPDATE (2/19/2017): WATERPIKING SAVES LIVES, MAYBE YOURS! REALLY! I MEAN IT! (I know, it sounds crazy...) I finally broke down and got a Waterpik when my dentist told me I had periodontal pockets and would need a deep cleaning. I read somewhere that with regular use of a Waterpik, I might just be able to reverse those pockets and eliminate that need for an uncomfortable deep cleaning. I gave it a three-month try and it worked! No deep cleaning needed! Also, I spoke with my primary care physician about plaque, and learned that there are two more (one of them could save your life) benefits to Waterpiking regularly. See my UPDATE at the end of this review. I have noticed that others have asked a lot of the questions that I had early on inside of their reviews and in the customer questions section. So I thought I would gather up all of the answers and put them in one review. I hope this will be your Guide to Using Your New Aquarius Waterpik. If you do find this review helpful, please click "Yes" below, I'd appreciate it! HOW DO I AVOID MAKING MY GUMS BLEED WHEN I START USING MY WATERPIK? It is not in the instructions anymore, but according to my husband, Waterpik used always to tell users to start by using the lowest "1" pressure setting and then to turn the pressure up one notch per day to get your gums adjusted to the Waterpik's pressure gradually. If you do this, you should be on "10", or whatever setting you prefer, in no time and with no gum bleeding. HOW DO I KEEP FROM SPLASHING WATER EVERYWHERE? There are two simple tricks never to see a water splash again. First, don't turn the Waterpik on until it is in your mouth. Second, keep your mouth closed except a slight parting of your lips to allow water to drain out of your mouth, while you use your Waterpik. That should take care of it! THE ON/OFF SWITCH ON THE HANDLE IS HARD TO USE. You will, unfortunately, just have to get the hang of how to master that switch. It seems to be a matter to where you apply pressure on the switch. It seems to work best when you apply pressure close to the center, rather than from the bottom or the top, in my limited experience. However, in the meantime, if you get frustrated, just use the on/off button on the face of the machine as a shortcut. WHY DO THEY SEND SEVEN TIPS BUT ONLY PROVIDE SLOTS FOR TWO? First of all, you only receive four different types of tips. The total number of tips adds up to seven because Waterpik provides three identical Classic Jet Tips (see below for descriptions of each). Most people choose only one style of tip for daily use (possibly two if you have periodontal pockets). The second slot can also be used for a partner or house-guest. WHAT IS THE DIFFERENCE BETWEEN THE FOUR STYLES OF TIPS INCLUDED? "CLASSIC JET TIP" (you get 3) To identify it: it is the only tip style that you get three of. Classic Jet Tips are for general use and replace flossing for people without crowns or other more-serious-than-fillings dental work. (For people with that sort of dental work, use the "Plaque Seeker Tip", described below.) Use the Classic Jet Tip unless you have a special reason to choose one of the others. Rather than include links to the replacement tips in this review, I recommend that you just do a search for "Waterpik JT-100E". That way, there's no risk that this review will be filled with dead links. If you search by the tip's name, you will probably get results that include tips that are not compatible with your Aquarius. So I have provided the actual model numbers of each tip so that you can search for the right one. If any tip that you want is not available on Amazon, you can buy it directly from Waterpik dot com. (Note For Ultra Buyers: the Ultra uses the same model tips as the Aquarius, provided here.) "TOOTHBRUSH TIP" (quantity: 1, but that is plenty for most) To identify it: it looks like a tiny toothbrush. This tip allows you to brush your teeth and Waterpik at the same time. As efficient as that sounds, there must be a reason why they included 3 Classic Jet Tips and only 1 Toothbrush Tip. I am guessing the reason is that this Brush Tip looks more efficient than it is -- especially if you have an effective toothbrush like a Sonicare. Search for "Waterpik TB-100E" to find compatible replacement tips. "PLAQUE SEEKER TIP" (quantity: 1) (my daily use tip) To identify it: look for fewer bristles than are on the Toothbrush Tip. The Plaque Seeker Tip is designed for use with crown, implants, and bridges, as well as for general use. So if you have any dental work more serious than fillings in your mouth (i.e. are you over 30?), you can just use this tip as your daily tip all around your mouth. "Removes bacteria and debris from hard to reach areas around dental restorations." Search for "Waterpik PS-100E" to buy refills. "PIK POCKET TIP" (quantity: 1) To identify it: it looks like the Classic Jet Tip but with an extra pointy attachment at the end. This one is for people who have periodontal pockets or furcations. It can "deliver medicaments" except that neither the Aquarius nor the Ultra is designed for that (they don't have "Medicament Reservoirs"), or just rinse deep below the gumline. Few people will choose to use the Pik Pocket as their daily tip. You would use this before or after you do your primary Waterpik rinse, and probably just on the areas that need it. This tip is supposed to be used only with the machine set to a pressure of "1", so don't forget to turn the pressure down before using it. Search for "PP-100E" to get compatible replacement tips. OTHER WATERPIK TIPS YOU CAN BUY ON AMAZON COMPATIBLE WITH THE WATERPIK AQUARIUS: these don't come with your Aquarius but they are compatible with it, and you may find them useful: --Orthodontic tip OD-100E --Tongue Cleaner TC-100E Finally, Waterpik also offers a storage case that comes with six compatible tips. Search for TS-100E. THE WATERPIK AQUARIUS VERUS THE WATERPIK ULTRA: A SHOWDOWN Some reviewers have argued that the older Waterpik WP100W Ultra Dental Water Flosser is a better device. However, many reviewers have claimed the opposite. Waterpik continues to make both. Here are the differences according to Amazon and Waterpik (you can do comparisons between any current models on Waterpik's website, just type in Waterpik dot com then choose Oral Hygiene): This Model, the Waterpik Aquarius WP-660 is called the "Aquarius Professional" on Waterpik's site. That's cool, right? As of this writing, the Ultra has fewer than 300 reviews that average 4.5 stars; this Aquarius has over 6,000 reviews that average 4.4 stars. Since I don't know if the Ultra's average rating is 4.500000 and the Aquarius's is 4.4999999999, I don't really see any difference in those reviews other than than a LOT more people choose to buy this Aquarius. Differences Between this Aquarius and the Ultra --while on Amazon, prices vary, Waterpik thinks the Aquarius is the nicer machine because they charge $20 more for the Aquarius than for the Ultra; --the Ultra has a button on the handle that you must hold down in order to keep the water flowing, if you let go, it stops; the Aquarius has an on/off toggle switch so that once you toggle it on, it keeps flowing without finger pressure, until you toggle it off; --the Aquarius comes with three Classic Jet tips, versus two with the Ultra --the Aquarius includes a massage mode (have to admit that I don't use this at all) --the Aquarius includes an LED Function Indicator (ehh) --the Aquarius includes a Timer/Pacer (I use this every day and know that I would stop sooner than I should if it weren't on there) --the Ultra doesn't include anything that the Aquarius does not Features That Are Identical Between the Aquarius and the Ultra --both come in black and white (Aquarius, this page; Waterpik Ultra White and Black available here; --same water pressure --same flow rate --same pulse rate --both have 10 pressure settings --the tips rotate 360 degrees --water capacity both in volume and in seconds --both have covered water reservoirs --almost identical weight: 1.46 pounds for this Aquarius and 1.48 for the Ultra --both have three-year warranties --both only have plugs for North America SOME OTHER MODELS AVAILABLE: Waterpik Complete Care is still available for $10 more and gives you a shorter warranty (2 years instead of 3), no massage mode, no LED indicators, and fewer tips. Thumbs down. If you're really price sensitive OR if you want to use medicaments OR you really hate filling the reservoir, the Waterpik Classic Pro is $30 less expensive on the Waterpik site (on Amazon, prices vary) includes a medicament reservoir, and holds up to 35 ounces (Aquarius and Ultra hold 22 ounces) but you will not get: --the good reviews that the Aquarius and Ultra have; Classic Pro is not nearly as well-liked; --the option of a black-colored model; --the maximum water pressure of 100 PSI (it's 90 PSI instead) --four pressure settings: you get only six pressure settings instead of ten (but honestly, how many people need the subtlety of more than six settings?); --the super-important-to-me Timer/Pacer --water control on the handle (it works like the Ultra: you have to hold a button down); --a covered reservoir; --covered tip storage; --massage mode; --LED Function Indicator; --the ability to use any tips other than the Classic, the Pik Pocket and the Tongue Cleaner (Waterpik does not make compatible Orthodontic tips, Plaque Seeker tips, or Toothbrush tips for the Waterpik Classic Pro) --the third year of warranty, Classic only comes with a tow-year warranty. I hope this review has been helpful to you. Please feel free to leave comments, as you can see, I have responded to the only question asked, and am happy to answer more. And I'd very much appreciate a "Yes" click if you did find this review at all helpful. (I have dreams of one day qualifying for the VINE reviewer program...) IMPORTANT HEALTH UPDATES (2/19/2017): WATERPIKING SAVES LIVES, MAYBE YOURS! THE LIFESAVING UPDATE: My Primary Care Physician just informed me that PLAQUE in the MOUTH CAUSES PLAQUE in the ARTERIES AND VEINS! !! ! !! That was a big surprise to me. Now I'm REALLY going to use this baby twice a day (like I told my dental hygienist I do <w>). A DENTAL HYGIENE BEST-PRACTICES UPDATE: My Primary also told me that using flossing brushes (like the Pixters my dentist told me to use) actually transfers bacteria from the first tooth to the second, and from the first and second to the third, and so on. Unless of course you use a new one for each tooth, each time. IMHO, they're way too expensive for that! So, she suggested using one per tooth but on a less frequent basis, and using the Waterpik two times, full time, every single day instead.
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Reviewed in the United States on August 3, 2015 by The Compari-Shopper
Color: Black
Number of Items: 1
I bought the Waterpik Aquarius Countertop Water Flosser after my dentist told me I needed to start using one, and I’m so glad I listened. I wanted to be more consistent with my gum care at home, and having this right on the counter makes it quick, convenient, and much easier to stick with. I also love that it has 10 pressure settings, so I can choose what feels comfortable, while the included tips make it useful for different cleaning needs. The water pressure does an excellent job cleaning between my teeth and along the gumline, and my mouth feels much cleaner than brushing alone. The countertop design is convenient because it is always ready to use, and the black color looks clean and modern in my bathroom. It does take up a little counter space, but it is absolutely worth it because I actually use it regularly. Overall, I’m really happy with it because it has made gum care easier, more effective, and something I’m finally staying consistent with every day.
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Reviewed in the United States on August 30, 2026 by Taylor
Color: Blue
Number of Items: 1
Effective Water Flosser That Makes Dental Care Easier. The Waterpik Aquarius WP-663 Water Flosser has been a very worthwhile addition to my oral care routine. After using it consistently for several weeks, I can definitely tell a difference in how clean my teeth and gums feel compared to brushing alone. It does an excellent job flushing out food particles and plaque from between teeth and along the gumline, especially in areas that can be difficult to reach with traditional floss. One of the standout features is the wide range of pressure settings. Whether you prefer a gentle cleaning or a more powerful stream, there’s a setting that can be adjusted to your comfort level. I started on a lower setting and gradually increased the pressure as I became more comfortable with the device. The water pressure remains consistent throughout use and provides a thorough cleaning experience every time. The large water reservoir is another feature I appreciate. It holds enough water for a complete cleaning session, so I rarely have to stop and refill it. The included assortment of tips is also a nice bonus, allowing different members of the household to use the unit or making it easier to target specific dental needs. The controls are conveniently located, and the pause button on the handle is especially useful when moving between different areas of the mouth. I also noticed that my gums felt healthier after incorporating this water flosser into my daily routine. My mouth feels fresher after each use, and routine dental cleanings have been easier since I’ve been using it regularly. For anyone with braces, dental work, or simply trouble using traditional floss, this product can make maintaining good oral hygiene much more convenient. The reason I’m giving it 4 stars instead of 5 is because it does have a few minor drawbacks. The unit takes up a decent amount of counter space, which may be an issue in smaller bathrooms. It can also be somewhat noisy while operating, and there is a learning curve when first using it. Expect a few splashes and a little mess during the first several uses until you get the technique down. Additionally, the water reservoir could be easier to clean thoroughly. Despite those minor complaints, the overall performance more than makes up for them. The Waterpik Aquarius WP-663 is reliable, easy to operate, and delivers a noticeably cleaner feeling than brushing alone. It has become a regular part of my daily routine, and I would recommend it to anyone looking to improve their oral hygiene. It’s not perfect, but it’s a high-quality product that delivers excellent results and is well worth considering.
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Reviewed in the United States on June 19, 2026 by Benjamin
Color: White
Number of Items: 1
As a first-time purchaser of any Waterpik product, I wasn't sure what to expect. The dentist and hygienist I had been seeing for more than 20 years stopped accepting my dental insurance, so I was forced to switch to a new dental office. Without going into too much detail, I have struggled with inflamed and tender gums for several years. My new dental hygienist recommended that I purchase a Waterpik to help massage my gums and clean between my teeth. This was the first time a hygienist had ever recommended a specific product to me, so I decided to take her advice and order one. It took me a couple of days to master using the Waterpik, but now that I have, I can honestly say that my teeth and gums feel much better. The water pressure is adjustable, and it also features a massage setting. The water reservoir is perfect for one, and sometimes two, uses. I don't mind refilling it each time because my hygienist recommended using warm water. It also comes with seven different tips, making it versatile for a variety of oral care needs. This experience has shown me that sometimes change can be a good thing. I highly recommend this product and only wish I had purchased one sooner!
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Reviewed in the United States on September 18, 2026 by Laurie
Color: Black
Number of Items: 1
I've had this for months now. It's doing a great job, and I wish I would have invested in a waterpik years ago. You don't realize what floss and brushing alone miss until you start incorporating a waterpik into your dental routine. With this model, you can adjust the water flow to suit your needs. In addition, you have several tips to choose from. The cord is long enough so that if you need to place it farther from the plug, you can do so. With 10 settings and multiple tips, I've found that it meets my needs quite well. It is a model that plugs in, so if you are seeking wireless, that would not be this one. Good water capacity...I generally do 3-4 rounds /refills of water before I put in my retainers for the evening.
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Reviewed in the United States on September 13, 2026 by Jade
Color: White
Number of Items: 1
I much say that I’m enjoying using my waterpik. My gums are so much better and easy to use. My mouth feels cleaner and fresher. It’s a powerful machine. I don’t normally write reviews but decided to give waterpik a second chance. The first one I had when I started to use it worked well up until the warranty was about to expire. I contacted the company told me to try different things and by that time warranty had expired. So the waterpik that I had also came with a flosser needless to say it to stop working after a few times. Both of them even fully charged or plugged in would start out normal but then just slows down to nothing. So I’m hoping this time around is a better experience for my dental health and a better experience with the company
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Reviewed in the United States on August 30, 2026 by Delia
Color: Blue
Number of Items: 1
This is the 3rd Waterpik flosser that I have purchased. Why? It's very durable, easy to use and doesn't take up much room on my counter. The water flow is excellent, and, with 7 tips, it gives me lots of choices. The warranty is very generous, but I have never had to use it. I've continued to purchase them, not because they wore out, but because they kept improving over the years.
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Reviewed in the United States on October 4, 2026 by Rowena