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Waterpik Waterflosser Cordless PLUS

3.9 out of 5 stars 1,851 customer reviews
| 133 answered questions

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About the Product
  • Dental water jet is clinically proven to be up to 93-percent more effective than flossing for improved gum health
  • Orthodontic tip is three times as effective as floss for plaque removal
  • Advanced ergonomic design with non-slip grip and easy-fill reservoir
  • Dual pressure control system for gentle-to-deep cleaning
  • Rechargeable device requires no batteries

Frequently Bought Together

  • Waterpik Waterflosser Cordless PLUS
  • +
  • WaterPik Cordless Plus Water Flosser Travel Case, Model WP-450 1 ea
  • +
  • Waterpik Dental Water Jet Replacement High Pressure Jet Tips (colors may vary) (Pack of 2)
Total price: $79.10
Buy the selected items together

Product Description

Product Description

Clinically proven up to 50% more effective than traditional dental floss and up to 80% more effective than Sonicare Air Floss for gingivitis treatment. Proven in laboratory tests to remove up to 99.9% of plaque from treated areas with a 3-second application. Removes bacteria deep between teeth and below the gumline where brushing and traditional flossing can't reach. Massages and stimulates gums to improve circulation and keep your gums strong and healthy. Leaves your mouth feeling incredibly fresh and clean. Healthier Gums in 14 Days Guaranteed. Includes 2 - Classic High-Pressure Jet Tip 1 - Plaque Seeker Tip 1 - Orthodontic Tip

Easier and more effective than flossing with string, the Waterpik Cordless Plus Water Flosser WP 450 powers away plaque and debris between teeth and below the gumline. Its dual water pressure control system provides gentle-to-deep cleaning. Four unique tips clean in specialized ways, while a cordless design provides flexibility and convenience.

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Waterpik Ultra Cordless
Water Flosser WP 450
At a glance:
  • Four unique tips clean in specialized ways

  • Up to twice as effective as string floss for improving gum health

  • Removes up to 99.9% of plaque from treated areas

  • Orthodontic Tip is three times as effective as string floss at removing plaque around braces

  • Adjustable dual water pressure removes debris and bacteria between teeth and below the gumline

  • Rechargeable device requires no batteries

  • Backed by a two-year warranty
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Waterpik Ultra Cordless Waterflosser WP 450

The WP 450 is clinically proven to be up to twice as effective as string floss at improving gum health. View larger.

Waterpik Ultra Cordless Waterflosser WP 450

Click here for a detailed comparison.
More Effective and Comfortable Than Floss
Finally, there is an easier, more effective alternative to string floss: the Waterpik Cordless Plus Water Flosser WP 450. The WP 450 is ideal for those who don't like to floss, as well as for anyone with braces, implants, crowns, bridges, or periodontal pockets. Water flossing for about a minute a day conveniently and comfortably removes up to 99.9% of plaque from treated areas and gently massages the gums to improve overall oral health. The WP 450 is clinically proven to be up to twice as effective as string floss at improving gum health, and three times as effective as string floss for cleaning plaque and debris around braces.

Four Unique Tips Clean in Specialized Ways
Offering four unique tips: the Plaque Seeker Tip, the Classic Jet Tip, the Orthodontic Tip, and the Tongue Cleaner, the WP 450 thoroughly cleans your whole mouth.

The Plaque Seeker Tip removes plaque in hard-to-reach areas around implants, crowns, bridges and other dental work. For healthier gums, the Classic Jet Tip reaches below the gumline to keep your mouth healthy.

Those who wear braces will appreciate the Orthodontic Tip--it's three times as effective as floss when it comes to removing plaque around braces. And the Tongue Cleaner removes bacteria from your tongue to help freshen breath.

Dual Water Pressure Control System
With the WP 450's dual water pressure control system, you can personalize your water pressure intensity. Choose either a gentle or more powerful pressure to meet your needs. The WP 450 uses a unique combination of water pressure and pulsations to massage and stimulate gums, removing plaque deep between teeth and below the gumline where traditional brushing and flossing can't reach.

Rechargeable Design Provides Flexibility
The cordless, rechargeable design of this WP 450 lets you walk away from the charger for maximum mobility and convenience. Never worry about batteries running out. Simply recharge the unit between uses. In addition, the WP 450's improved shape takes up less space on the bathroom countertop, and an advanced, ergonomic handle with non-slip grip fits securely in your hand.

Waterpik Cordless Plus Water Flosser WP 450 is backed by a two-year warranty.

About Water Pik, Inc. : Treat Yourself Better
Since 1962, Water Pik, Inc. has been a leader in developing and manufacturing innovative personal and oral health care products. Over the years, Water Pik has acquired more than 500 patents, maintaining a steadfast commitment to developing innovative products that enable people to treat themselves better. Waterpik brand products are recognized for their award-winning design and technology.

With the number-one recommended Water Flosser, Waterpik is one of the most trusted oral-health brands of dental professionals throughout the world. The company is committed to developing products that not only enhance the health and well-being of customers, but also conserve water and energy.

What's in the Box
One Waterpik Cordless Plus Water Flosser WP 450; four unique tips: one Plaque Seeker Tip, one Classic Jet Tip, one Orthodontic Tip, and one Owner's Manual; and Quick Start Guide.

Product Details

  • Product Dimensions: 5 x 3.2 x 9 inches ; 1.4 pounds
  • Shipping Weight: 1.3 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • UPC: 073950293204 043396327788 794437483689 797978582040 799540027379
  • Item model number: WP 450 / 20009320
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (1,851 customer reviews)
  • Amazon Best Sellers Rank: #3,210 in Beauty (See Top 100 in Beauty)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

I have had two rechargable Waterpiks. Both had the same problem. After about 5 or 10 months the unit gradually loses the ability to charge up. Most users assume that the battery became defective.

I really need this thing so I decided to look into it and found that the battery in each case was fine. What happens is that the connector on the charging cable gradually deteriorates. This might be due to getting wet repeatedly combined with corrosion and deposits. The inside of the female part of the connector gets get eaten away and actually gets larger in diameter. The electrical connection deteriorates and finally becomes unusable. As a result the battery no longer gets recharged.

I found that the "AdaptaPlug" connector system available at Radio Shack has the same pin diameter and pin spacing. By whittling some plastic away I made a better connector from the Radio Shack parts and now the Waterpiks work like new.

The part numbers of the Radio Shack connectors needed are:
Male: 273-1742
Female: 273-1743
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I was ambivalent about buying this based on the reviews that I have read. I will say up front I do not have a Waterpik that sits on my counter top and plugs into the wall socket. I had one once and will never own one again. You pull on the hose and the unit travels across the counter. No I found that I like the cordless ones better. I have own the Waterpik WP-360W. It was OK but the battery pretty much had to be charged every week if used daily. It held just enough water to get the job done, it was hard to fill with water under the bathroom sink and I got about 3 years use from it until the unit stop charging due to corrosion where the charger plugs into the unit(This is because water spills on the connection).

I then bought the Panasonic EW-1270AC. This was fine for travel but it had allot of problems like the water cap always falling off, water leaking out when you needed to store it in the suitcase(always had to keep it in a zip loc bag to prevent the remaining water that was always there even after emptying in sink), the tip always falling on the floor as the way it was to be stored should have held the tip better. Allot of germs on the floor. Plus the batteries were not rechargeable. So even after reading the reviews on the new Waterpik Cordless Dental Jet I bought one. For the life of me I could not understand why so many negative and mediocre reviews on this unit. But I figure it could not be that bad as it was the number one seller of cordless water jets. Here is a little contrast and compare on the reviews and my unit the WP-450 Ultra;

1. It is so loud it will wake anyone sleeping. Coffee grinder loud!
** Yes I guess it is loud as it is near you ear while using! But not that loud to me(i.e.
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Counter tops? No, just charge this thing up and put it in your shower, don't worry about making a mess, life is so easy now, wish someone would've told me this 10 years ago.

Regarding the charging not working after a few months (as many people have complained about), the other reviewer here correctly explained the issue (the contact points stop contacting the cord to receive the charge). The other reviewer suggested getting a different charging cord that had a tighter fit, but the solution I found was just use a bobby pin to clean off the funk that builds on the charging tips on the device. Its a poor design, being "level" the water can accumulate there & build deposits on the tips, preventing the charge from transferring. Just clean off the charging tips so the juice can flow across, easy fix.
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I've owned my Ultra Cordless for about 6 months now, and feel that enough time has gone by to write a review. Some of categories I have been keeping an eye on are: 1) Battery Charge Intervals 2) Reservoir Size 3) Jet Power 4) Ergonomics 5) Construction Quality 6) Corrosion at recharge terminal 7) Power Switch reliability 8) Noise 9) Transportability 10) Effectiveness of oral irrigation.

1) The battery charge interval is outstanding. I use the unit twice a day on average, and I can go more than three weeks between charges. Each use of the unit drains the fully filled reservoir. I let the battery completely discharge through use, then fully recharge on the charger overnight for more than 12 hours.

2) Rerservoir size, on full power setting, is more than adequate to fully irrigate for me. I find no issues with the size.

3) Jet Power, has two settings. I use the full power setting, and it seems to have enough power with a fairly strong jet. When I first started using the Ultra, I had to start on the low setting due to gum sensitivity.

4) The unit has a tapered area that makes it easy to hold. Also, the tank design weighs the unit such that it is comfortable to the hand.

5) Construction quality seems good, with quality plastics. It is made in China.

6) Corrosion at recharge terminal. The terminal socket has pins that are gold plated. Even though it gets wet during use, there is no corrosion in the terminal socket, as would be expected from gold plated pins.

7) Power on/off switch reliability. This is a slider switch, and it gets wet during use. It does not appear to be water proof by way of external examination. However, it is working fine after 6 months, and doesn't appear to be suffering any degradation.
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