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The Waterpik Ultra (WP-100) is a plug-in countertop water flosser with 10 pressure settings from 10 to 90 PSI and 1,200 pulses per minute. Its large reservoir runs 90+ seconds without a refill, and it ships with six tips covering braces, implants, gum pockets and general use. It is the long-standing benchmark in countertop flossers: more pressure range and tip variety than most rivals, but bulkier than cordless models and tied to an outlet. Reviewers call it effective for gum health, though many complain about the reservoir lid and leaks.
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Availability unknownSold by irinassale (100% positive, 8,300 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $33.00 on Nov 11 at Whatnot; highest $59.99 on Nov 10. Tracked across 17 stores since Nov 10.
Owners largely find it effective, with many saying it stopped bleeding gums and became part of their daily routine. Complaints center on the reservoir lid, leaks and long-term durability.
Transform your oral health with the Waterpik Ultra water flosser WP-100. This performance plug-in model features enhanced water pressure with 10 settings so you can customize your cleaning level, and the high-capacity water reservoir provides 90+ seconds of capacity for maximum flossing time.
The Ultra water flosser comes with 6 flossing tips for multiple users and dental needs, including braces, implants, and other dental work. The reservoir lid includes storage tips to keep them clean and close by.






