WP-660 Aquarius® Professional Water Flosser

WP-660 is rated 4.618181818181818 out of 5 by 110.
  • 2016-09-24T10:26CST
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MSRP $79.99

The Easy and More Effective Way to Floss,™ the Waterpik® Aquarius® Professional Water Flosser is the most advanced water flosser ever.

Featuring a new compact and contemporary design, the Aquarius® includes on/off water control on the handle, an LED information panel, and 7 water flosser tips. New pulse-modulation technology provides maximum plaque removal (Floss Mode) and enhanced gum stimulation and improved circulation (Hydro-Pulse Massage Mode). The convenient one-minute timer with a 30-second pacer ensures thorough water flossing of all areas.

Waterpik® Water Flossers are clinically proven to be more effective than traditional dental floss and Sonicare® Air Floss (Model HX8181) for reducing plaque, gingivitis, and gum disease. And it's perfect for anyone with braces or implants, and those with crowns, bridges, and veneers.

Product Benefits

  • Effective Plaque Removal: Clinically Proven to remove up to 99.9% of plaque from treated areas in 3 seconds
  • Healthier Gums: Clinically proven up to 50% more effective than traditional dental floss
  • Ideal for Implants: Clinically proven up to 2X as effective for improving gum health around implants vs. string floss using the Plaque Seeker® tip
  • Essential for Braces: Clinically proven up to 3X as effective for removing plaque around braces vs. string floss using the orthodontic tip
  • Removes plaque and debris deep between teeth and below the gumline where brushing and traditional flossing can't reach
  • Massages and stimulates gums to enhance circulation and keep your gums healthy
  • Leaves your mouth feeling incredibly fresh and clean
  • Great for people with implants, and those with crowns, bridges, and veneers
  • Healthier Gums in just 14 Days Guaranteed

Product Features

  • 7 Tips
  • Advanced pressure control system with 10 settings
  • Reservoir capacity of 90+ seconds
  • On/off water control on handle
  • 2 Modes - Floss Mode and Hydro-Pulse Massage Mode
  • 1-minute timer with 30-second pacer
  • LED information panel
  • Enhanced pressure performance with 10% more water pressure
  • Compatible With 120VAC/60Hz Outlets, For Use In North America Only
  • Three-year warranty

Product Manuals

Water Flosser Features

  • Pressure Range: 10 to 100 PSI (0.703 to 7.030 Kg/cm2)
  • Flow Rate per Minute: 13 Ounces (400 mL)
  • Pulses per Minute: 1400
  • Number of Pressure Settings: 10
  • Included Flosser Tips: 7
  • Water On/Off Switch on Handle: On/Off Slider
  • Chrome Accents: No
  • Rotating Tip: 360 Degree

Advanced Functions

  • Timer/Pacer: Yes
  • Massage Mode: Yes
  • LED Function Indicator: Yes


  • Capacity: 22 Ounces (650 mL)
  • Capacity in Seconds: 90
  • Covered: Yes
  • Medicament Reservoir Included: No

Size and Weight

  • Height (with Tip/Brush): 10.35 Inches (26.29 cm)
  • Max Width (Base): 4.70 Inches (11.93 cm)
  • Max Depth (Base): 3.80 Inches (9.65 cm)
  • Unit Weight: 1.46 Lbs (0.665 kg)
  • Shipping Weight: 2.00 Lbs (0.910 kg)

Power and Warranty

  • Voltage: North America only; 120VAC/60Hz
  • Warranty: 36 Months

Included With Unit

  • 3 - JT-100E - Waterpik® Classic Jet Tip
  • 1 - OD-100E - Waterpik® Orthodontic Tip
  • 1 - PS-100E - Waterpik® Plaque Seeker® Tip
  • 1 - PP-100E - Waterpik® Pik Pocket Tip
  • 1 - TB-100E - Waterpik® Water Flosser Toothbrush Tip

Available For Unit

  • TC-100E - Waterpik® Water Flosser Tongue Cleaner
  • TS-100E - Water Flosser Tip Storage Case - with 6 Tips
Rated 5 out of 5 by from The Aquarius WP - 660: Performs as Promised! This is my first Waterpik. After reading reviews online I kept going back and forth between purchasing the Waterpik Aquarius and the Waterpik Ultra. Even though they both looked like great products, I chose the Aquarius and I am so glad I did. The Aquarius is a very well thought out, functional, smart product. The new features on the Aquarius like the on/off button on the handle, the 30 second pause, the gum massage, and the sleek design ultimately were the reasons I chose the Aquarius. I find these new features to be very useful in my day-to-day use of the flosser. This product has performed for me exactly as promised.
Date published: 2015-12-02
Rated 4 out of 5 by from Great features but... I am a long-time Waterpik user and I needed a second unit for another location so I went with this model. I love the features and design with one exception...the intentional water leak from the bottom of the unit should I leave any water in the chamber. I understand the reasoning since standing water can breed algae/mold, but residual water leaks on my counter even when I fully discharge all water from the chamber during use which is annoying. I find that I have to wipe underneath the unit after every use and should I forget to empty the chamber on occasion I'll come back to find quite a puddle on my counter. If you can live with this extra "feature" you should be happy with this unit.
Date published: 2016-02-18
Rated 5 out of 5 by from Customer Service. I bought the Waterpik® WP-660 April 10, 2016 and it died June 10, 2016. I called Waterpik and within 3 minutes I was off the phone and a new device was on the way. My daughter has been using hers for several years without any problems. I was impressed with the machine when I purchased the first one. I flossed and brushed my teeth before using the device for the first time and found out that the flossing and brushing didn't dislodge everything between my teeth. I use the machine everyday and I am always amazed at all of the extra little goodies that are flushed from between my teeth.
Date published: 2016-07-04
Rated 5 out of 5 by from Lots of cleaning options My hygienist asked me to start using a Water Pik. I began three weeks ago gradually increasing the settings once/week. I have noticed an improvement in the cleanliness of my mouth post use and the advantages of using this product on the pockets between my teeth. I used to have to have special pocket cleaning by the hygienist and am now hoping my use of the product will prevent that and the costs that incur because of it.
Date published: 2016-05-27
Rated 5 out of 5 by from Great machine; fantastic service I bought this a little over a year ago and it died. Pretty sure the culprit is the baking soda and 1 drop of oregano oil I put in. Rinsed it and ran clear water through it EACH TIME but evidently it clogged anyway and died. My 3-year warranty was honored and 2 days later I had a new one. STICK TO WATER, PEOPLE, and save the baking soda and oil (with coconut oil) for the toothbrush. This is a great device for getting stuff out of tight teeth. Highly recommended.
Date published: 2015-07-13
Rated 3 out of 5 by from Good except for...... I bought this about 2 months ago but have only been using this about a month. I do like it except for the fact that the on/off switch for the water is very difficult to move from on to off and from off to on. Especially when you have some arthritis in your fingers. Instead of using the switch I push the power button from on to off and from off to on to stop the flow of water during cleaning process. I emailed the company about this problem and they said it would become easier with use. So far that has not happened. Otherwise I do like using the product. Not sure whether I could recommend it only because of this problem.
Date published: 2016-02-04
Rated 5 out of 5 by from I never knew I have never had a Waterpik in the past, and recently got one as a gift from my kids. Honestly, had I known how clean my mouth would feel I would have owned one years ago.
Date published: 2016-04-19
Rated 4 out of 5 by from Compact I've had this a little over a month now and so far so good. I haven't had any problems with it. I like it because it's a lot more compact than the one I used to own.
Date published: 2015-07-21
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