This cordless Waterpik is now 40% off on Amazon — an exact match of its 2025 Black Friday deal

SAVE $20: Amazon has the Waterpik Cordless Pulse 3100 on sale for just $29.99. That's 40% off its $49.99 MSRP and a record-low price. $29.99 at Amazon $49.99 Save $20.00 Don't let your upcoming Thanksgiving feast overstay its welcome. According to experts who spoke with our sister site, CNET, a water flosser is a smart buy for folks with braces, crowns, and generally sensitive gums who want to stay on top of their dental health.After extensive testing, CNET named the Waterpik Cordless Pulse 3100 the quietest water flosser available. And right now, it's cheaper than ever. The best tech deal this week The Apple iPhone 18 Pro is free right now with T-Mobile The Cordless Pulse 3100 is marked down to just $29.99 on Amazon ahead of its Black Friday Week sale, which is 40% off its usual sticker price of $49.99. This is an exact match of its all-time low price from Black Friday 2025, which hasn't reappeared until now. Credit: Waterpik The Cordless Pulse 3100 is a relatively basic water flosser with two pressure settings and two tips (a regular flosser and a tongue cleaner). But it holds a charge for quite a while — up to nine weeks! — and runs more quietly than the competition, CNET said, making it a great option for travel. Plus, you can clean its water reservoir on the top rack of a dishwasher. Mashable Deals By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use. Amazon has its Cordless Pulse 3100 deal marked with a "selling fast" badge, so don't wait too long to add this one to your cart.