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Review of Waterpik Waterflosser Cordless PLUS - WP 450 / 20009320
4.40 stars Very Good Form 4135 Reviews
Reviewed on: July 16, 2013 Author:
Price Range


Pros & Cons


  • Cordless and rechargeable, no batteries required
  • Easy to use with one-touch dual pressure control system
  • Large cordless water flosser reservoir of 45 seconds
  • Four tips for complete oral care habits
  • Advanced ergonomic design with non-slip grip
  • Ideal for travel and light weight
  • Good for braces and has adjustable pressure settings


  • Handle may leak
  • Buttons are sticky at times
  • Can be messy due to fast and wide spray
Review Summary

This is the summary of consumer reviews for Waterpik Waterflosser Cordless PLUS - WP 450 / 20009320. The BoolPool rating for this product is Very Good, with 4.40 stars, and the price range is $36.99-$54.99.

Waterpik Water Flosser Cordless Plus provides a unique combination of water pressure and pulsations to massage and stimulate gums, and remove plaque deep between teeth and below the gum line where traditional brushing and flossing can't reach. This unit is ideal for those who don't like to floss and for anyone with braces, implants, crowns, bridges, or periodontal pockets. And it is a great solution for those who prefer the convenience of a cordless water flosser. 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. This unit 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 than other orthodontic appliances. The dual water pressure control system helps in personalization of the water pressure intensity by choosing either a gentle or more powerful pressure to suit individual choice and need.

The Cordless Plus Water Flosser comes with 4 tip attachments – the Plaque Seeker Tip which removes plaque in hard to reach areas around implants, crowns, bridges and other dental work, the Classic Jet Tip reaches below the gum line to keep your mouth and gums healthy, the Orthodontic Tip is three times as effective as floss when it comes to removing plague or debris around the braces and the Tongue Cleaner removes bacteria from the tongue to help freshen breath. It includes an advanced ergonomic handle with non-slip grip, an improved easy-to-fill reservoir, and a dual-pressure control - low for sensitive gums and high for deep cleaning. Quick and easy to use, the cordless rechargeable design gives maximum mobility and convenience eliminating the worry of batteries running out.

It is advised to turn on the device after putting the brush in the mouth and turn it off before removing it from the mouth to avoid a mess. Also, another major drawback seen is the leaking handles and sticking buttons of the device.

Overall, the Waterpik Water Flosser Cordless Plus is one of the most trusted brands of dental professionals and consumers for complete oral health. Premium-quality cordless design, lightweight and easy to use features along with affordable price makes it easy to maintain healthy gums. This unit is backed by a 2 year warranty and can be used with your favorite mouthwash for a clean and refreshing sensation.


  • Dimension: 3.0” L x 2.5” W x 11.5” H
  • Weight: 1.4 pounds
User Voice
Waterpik Waterflosser Cordless PLUS - WP 450 / 20009320
Makes mouth and gums feel great Can be a messy product Turn on after putting the brush in the mouth Turn the device off before removing it from the mouth If the reservoir is not secured to the body properly then it can fall off and create a mess Pause button on the pick turns off while holding Spray comes out very fast and wide
Review Group #: 1 Rating :
3.50 stars
4 Reviews See Details
Compact in size Portable especially while traveling Good on braces Bigger water tank Lid to hold all pick attachments High and low pressure setting
Review Group #: 2 Rating :
4.50 stars
7 Reviews See Details
Very powerful Good and adjustable pressure setting Light water pressure even on high level Does not hold enough water Advisable to start on light pressure then build towards high to avoid hurting gums
Review Group #: 3 Rating :
3.50 stars
10 Reviews See Details
Handle leaks thus dropping the tip pressure Buttons stick Leaking issue causes frustration
Review Group #: 4 Rating :
3.00 stars
14 Reviews See Details
Easy to use Easy to attach and detach elements Standard jet tip works excellently Does better than flossing Start or stop button for water flow High water pressure but gentle on teeth and gums Better attachments Larger reservoir Cord storage area and lid to cover the reservoir Comes with eight attachments
Review Group #: 5 Rating :
4.00 stars
15 Reviews See Details
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Review Sources
Waterpik Waterflosser Cordless PLUS - WP 450 / 20009320
Waterpik Waterflosser Cordless PLUS


Rating : 4.40 stars Form 4135 Reviews
Waterpik Waterflosser Cordless PLUS - WP 450 / 20009320
Waterpik Cordless Plus Water Flosser


Rating : 4.40 stars Form 4135 Reviews
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Rating : 4.40Very Good
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