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💦 Elevate your floss game—because your gums deserve the VIP treatment!
The Waterpik Aquarius Water Flosser WP-660 is a professional-grade oral hygiene device featuring 10 adjustable pressure settings, a 360-degree rotating tip, and a large 22 oz reservoir for uninterrupted flossing. Clinically proven to remove up to 99.9% of plaque bacteria, it comes with 7 specialized tips for multiple users and dental needs. ADA accepted and backed by a 3-year warranty, this corded electric flosser combines advanced PrecisionPulse technology with user-friendly features like a built-in timer and water on/off switch, making it the top choice for effective, convenient, and dentist-recommended dental care.



























| ASIN | B00HFQQ0VU |
| Additional Features | Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Rotatable Tip, Timer |
| Best Sellers Rank | #858 in Health & Household ( See Top 100 in Health & Household ) #3 in Power Dental Flossers |
| Brand | Waterpik |
| Brand Name | Waterpik |
| Color | White |
| Compatible Refills | waterpik_aquarius_water_flosser_wp_667 |
| Customer Reviews | 4.6 out of 5 stars 156,001 Reviews |
| Global Trade Identification Number | 00056310179752 |
| 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 Dimensions | 3.8 x 4.7 x 10.3 inches |
| Item Nype Name | Waterpik Performance Water Flosser |
| Item Weight | 1.46 Pounds |
| Manufacturer | Water Pik, Inc. |
| Manufacturer Part Number | WP-660 |
| Manufacturer Warranty Description | 3 Year Limited Manufacturer's Warranty, see manual for details |
| Material Type | Plastic |
| Model Name | Aquarius Water Flosser |
| Model Number | WP-660/660C |
| Power Source | Corded Electric |
| Product Benefits | ADA Accepted for Safety and Effectiveness, Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque Product Benefits ADA Accepted for Safety and Effectiveness, Gum Health, Prevents Bad Breath, Prevents Cavities, Removes Plaque See more |
| Recommended Uses For Product | Daily Cleaning, Daily Plaque Removal, Deep Cleaning, Gum Health |
| Special Feature | Multiple Operation Modes, Multiple Pressure Settings, Multiple Tips, Rotatable Tip, Timer |
| Specification Met | ADA |
| Tank Volume | 22 Fluid Ounces |
| Target Use Body Part | Teeth |
| UPC | 056310179752 |
| Unit Count | 1 Count |
D**A
Powerful and easy to use
I’ve been using this water flosser daily and I’m really happy with it. The water pressure is strong and it leaves my teeth feeling much cleaner than regular floss alone. Easy to use, works great, and feels very effective for deep cleaning between teeth and along the gums. Definitely worth it for everyday dental care.
J**E
This great old classic still is essential for dental health - buy it - use it!
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.
J**T
Efficient & Powerful for Dental Hygiene
As a prior user of the Waterpik, I bought a more expensive product to help with my dental care as I am not the biggest fan of flossing and Waterpiks have always been more efficient for dental hygiene. In the past couple of weeks since I've used this product, it has been worth the purchase as it has been very good at cleaning out plaque, food particles and other objects in my teeth before brushing. It is portable & easy to set up in my bathroom but also very powerful at cleaning out any loose particles. For those that take their dental health seriously, I highly recommend this product.
E**A
Mostly good experience, but the noise is loud and the slide button is hard to feel while using
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.
T**!
Best water pick for permanent retainer wearers!
I genuinely cannot believe I waited this long to get a Waterpik. This thing has completely upgraded my dental routine and made my mouth feel cleaner than regular floss ever has. The Waterpik Aquarius is powerful, easy to use, and honestly makes my teeth feel like I just left the dentist every single time. The rotating tip is a game changer because it easily reaches every area of my mouth, especially those annoying back teeth that are hard to floss properly. I also love the built-in timer and pacer because it helps make sure I’m actually spending enough time cleaning every section instead of rushing through it. What impressed me most is how fresh and clean my mouth feels afterward. My gums feel healthier, my teeth feel smoother, and it removes so much more than traditional floss alone. It’s also amazing for anyone with sensitive gums, dental work, or braces because it’s thorough without being harsh. The large water reservoir is super convenient, and having multiple flossing tips included makes it perfect for different dental needs or multiple people in the household. You can absolutely tell this was designed with both effectiveness and comfort in mind. At this point, I honestly never want to go back to regular flossing alone. This has become one of those products that makes such a noticeable difference that you wonder how you ever lived without it!
C**Y
Honestly, 100% worth the money
As someone who used to use floss or floss picks every night, let me tell you this thing is genuinely such a game changer! It is so easy to use, it works so well that you'll be amazed at how much you get out of your teeth. I would say this is one of the most practical and useful pieces of modern technology that I've purchased in 10 years, possibly more. I 100% recommend this to anyone looking to up your dental cleanliness game.
P**Y
Great Pick
this is a great product that gets the job done. Works well with good pressure. Would recommend and good for the pricepoint.
N**E
Helpful for consistency, not a floss replacement
Context / Background This is my first water flosser. I’ve historically used string floss, but inconsistently, which is what pushed me to try a tool that would help me keep a better cadence. I’ve owned the Waterpik Aquarius since late 2023 and primarily use it at night, switching between this and traditional floss. Dentists will still tell you string floss matters, and in my experience, using both is better than either alone. Setup & First Use Setup and instructions were straightforward, with clear explanations of why different tips exist. It’s nice that multiple classic tips are included, which makes it practical for a household. The first thing you notice is the sound — it’s louder than I expected, though I had no real reference point going in. Functionally, it’s easy to use, but I would strongly recommend starting on the lowest pressure setting until you get used to managing the water flow from tooth to tooth. It feels a bit strange at first, and yes, you’ll be leaning over a sink with water running out of your mouth — that’s just part of the process. Performance & Use I typically use the low to medium pressure range. It’s effective at speeding up the process and cleaning areas that brushing alone misses, but I don’t consider it a full replacement for string floss. For me, the real benefit is speed and convenience — I’m more likely to actually use it consistently. I haven’t experienced gum irritation or bleeding, but that’s obviously individual. I’ve only used the classic jet tip so far, paired with an electric Oral-B toothbrush. The rotating tip is a genuinely useful feature, especially for wrist comfort and maneuverability. The pause button becomes less important once you get used to moving around your mouth, but it’s helpful when starting out. Noise, Size & Maintenance Noise-wise, it’s comparable to an electric toothbrush, maybe slightly louder due to the size, but not disruptive. I’m comfortable using it at night. The reservoir has always been sufficient for a full session, often with water left over. Cleaning is easy — the unit comes apart, and I empty and leave the reservoir open to dry after each use. Like any water-based device, mineral buildup will depend on your local water, but nothing here feels flimsy or poorly made. Why This Model I chose the Aquarius over a cordless model mainly for the wider pressure range and feature set. The rotating handle was a key factor, and I preferred having more control while figuring out what pressure worked best for me. If I ever replace it, a quieter model with a similar swivel feature would be high on my list. Bottom Line This is an enhancing tool, not a miracle replacement for string floss — and your dentist will still want you to floss traditionally. If cost is a concern, floss works and always has. That said, for someone who struggles with flossing consistency, wants a faster routine, or needs extra help around braces or tight spaces, this does exactly what it claims to do. I’ve had no issues so far, and for what it is, it earns its place in my routine.
Y**D
Waterpik
Not suitable for travel as it works on dc
A**R
Glad that I bought it!
Works great, easy to use and does a great job plus buying from Amazon means you don't have to waste time going from store to store
M**T
Ne convient pas pour la Belgique prise USA
La prise est des usa et il faut un convertisseur qui coûte 46 euros Ce n’est pas signalé
L**S
Fantastic gadget for the whole family.
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!
J**O
De las mejores compras
Excelente producto, cumple perfectamente con el objetivo, el único detalle que le pondría es el ruido y la vibración, pero lo compensa su excelente resultado.
Trustpilot
1 month ago
2 weeks ago