Cordless Water Flosser Only $7.99 Shipped on Amazon | One Charge Lasts Up to 30 Days!

By Angela | Amazon Affiliate Director

Sep 24, 2026 @ 12:20 PM MDT

As an Amazon Associate, Hip2Save earns a small commission from qualifying purchases in this post. Amazon prices and promotions are accurate at the time of posting and subject to change. Read our full disclosure policy here.

For a limited time, head to Amazon where you can snag a COSLUS Water Flosser for just $7.99 shipped when you use promo code UZ84TO7U at checkout.

COSLUS Water Flosser in Black $35.99 (reg. $42.99)
Use promo code UZ84TO7U
Final cost $7.99 shipped!

Enjoy a deep, refreshing clean with three flossing modes: Normal, Soft, and Massage. The extra-large 10oz+ water tank, long-lasting battery (up to 30 days per charge), and lightweight, travel-friendly design make it easy to keep your smile fresh whether you’re at home or on the go. Includes a charging cable.

*Note that a charging adapter is not included, but you can use any 5V adapter you may have on hand.

“I absolutely love this water flosser! I use it daily and my mouth feels so clean!! The attachment pieces are amazing and I love how it comes with 5 attachments. Plus, it does not leak, so I can fill it up and leave it on the counter if I have to stop in the middle and not worry about a mess. Plus, when it comes time to clean it out, there are a couple of different openings so I can let it air out without getting moldy. Definitely one of my better buys and a true winner.”

About the writer:

Angela graduated with a Bachelor's Degree from Middle Tennessee State University and has 25+ years of experience as a writer and photographer with her work being featured in US Weekly Magazine, The Los Angeles Times, People Magazine, and more.