Your dentist has probably told you to floss more. And if you’re like most people, you nodded and then promptly didn’t. The Waterpik Aquarius WP-663 is the reason that excuse is running out of steam. It’s the #1 water flosser recommended by dental professionals, it carries the ADA Seal of Acceptance, and right now it’s 40% off on Amazon. That’s a hard combination to ignore.
Key Features
- 10 Pressure Settings: From a gentle rinse to a deep clean, you can dial in exactly the right intensity. Starting low and gradually increasing is great for beginners or anyone with sensitive gums.
- 7 Interchangeable Tips: Includes tips for general use, orthodontics (braces), periodontal pockets, tongue cleaning, and more. The whole family can share the base unit with their own color-coded tips.
- 22 oz Reservoir — 90+ Seconds of Flossing: The large tank means no mid-session refills. One fill gives you a full, thorough clean without interruption.
- Massage Mode: A dedicated setting for gum stimulation that alternates pressure to improve circulation and gum health over time.
- Built-In Timer & Pacer: Pauses briefly at 30 seconds and 1 minute so you can track your flossing time and make sure you’re giving each quadrant enough attention.
What We Love
The clinical results speak for themselves: the Waterpik Aquarius removes up to 99.9% of plaque from treated areas and is clinically proven to be 2x more effective than string floss at improving gum health. That’s not marketing fluff — that’s backed by the American Dental Association.
What makes it genuinely enjoyable to use is how thorough and fast it is. A full flossing session takes about 60 seconds, and your mouth feels noticeably cleaner than string floss ever achieves. If you have braces, implants, crowns, or bridges, the targeted tips make it easy to clean around hardware that traditional floss can’t reach.
The 10 pressure settings are a smart touch. If you’re new to water flossing, you can start at 2-3 and work your way up as your gums adapt. Most people land around 6-7 for daily use. The 360-degree rotating tip makes it easy to hit every angle without contorting your hand.
Things to Consider
This is a countertop unit, so it needs a spot near an outlet in your bathroom. It’s not bulky — about the size of a small electric kettle — but it’s not travel-sized either. If you want something portable, Waterpik makes cordless models, though they have smaller reservoirs and fewer settings.
There’s also a learning curve for your first few uses. Water will go everywhere until you learn to close your lips around the tip and lean over the sink. After 2-3 sessions, it becomes second nature. Start at a low pressure setting to avoid surprising yourself.
Who Is This For?
The Waterpik Aquarius is perfect for anyone who wants healthier gums without the hassle of string floss. It’s especially valuable if you have braces, dental implants, crowns, or periodontal issues. Families love it because multiple people can share the base unit with their own tips. And if your dentist keeps flagging gum inflammation at your checkups, this is the most painless way to fix that. While you’re upgrading your self-care routine, our CeraVe Daily Moisturizing Lotion review and The Ordinary Hyaluronic Acid serum review cover two more bathroom essentials worth adding to your daily lineup.
The Verdict
At 40% off, the Waterpik Aquarius is a steal. It’s the most-recommended water flosser for a reason — the build quality is solid, the pressure range covers everyone from sensitive gums to deep-cleaning power users, and the results are clinically proven. Your dentist will genuinely notice the difference at your next visit. If there’s one bathroom upgrade worth making this year, this is it.