
FREE shipping to
Enhanced filtration
The CT filter effectively reduces chlorine, lead, taste and odor, and other harmful heavy metals.
Q: What does this filter remove from the water?
A: This filter effectively reduces chlorine, lead, taste and odor, and other harmful heavy metals.
Q: Which Waterdrop models are compatible with this replacement filter?
A: This filter is compatible with the Waterdrop B-BBY-TSU-B and B-BBY-TSU-W models.
A: Yes, this filter is NSF listed.
Q: How long does the filter last?
A: This filter has a service life of up to 12 months.
Q: Is this filter easy to install?
A: Yes, the filter is easy to install and requires no tools, only a simple twist.
Q: Is this the replacement foe Waterdrop WD-EDF ?
A: undefined
Q: Does this work with ultrefiner II part number 51635
A: undefined
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Enhanced filtrationThe CT filter effectively reduces chlorine, lead, taste and odor, and other harmful heavy metals.

Compatible with Waterdrop Under-Sink Ultra Filtration System (WD-TSU-B/WD-TSU-W) and Waterdrop Integrated DC Filtration System (WD-TSC-W/WD-TSC-B).

Upgrade your hydration with the Hydrofast B100—the smarter, cleaner, and more convenient way to enjoy pure water every day! Featuring a powerful 6-stage RO filtration system with built-in UV sterilization, it removes 95% of TDS, eliminates heavy metals, fluoride, and over 1,000 contaminants, while remineralization adds essential nutrients for healthier, better-tasting water. No installation needed—just plug and play on any countertop in your home, office, or RV. The eco-friendly 3:1 pure-to-drain ratio reduces waste, and the long-lasting filter lasts up to 12 months with easy twist-and-pull replacement. Stay in control with the smart display, offering instant TDS readings, filter status updates, and quick-select dispensing options (3.4/8.5/15.2/20.3 fl oz). With a rapid 100 GPD flow rate and a 1.06-gallon tank, you’ll always have fresh, safe water on demand. Ditch plastic bottles and embrace a sustainable lifestyle—the Hydrofast B100 delivers purity, convenience, and peace of mind in every sip.

The Waterdrop WD-A2 is a countertop reverse osmosis system with 5-stage filtration and a 0.0001μm RO membrane that reduces TDS, PFAS, chlorine, fluoride, arsenic, lead, and more for safe, pure water. Offering both hot and cold options with six adjustable temperature settings from 59℉ to 203℉ and five water volumes, it meets diverse daily needs with instant performance. Its portable 40oz pure water pitcher and no-installation design make it convenient for kitchens, offices, living rooms, or RVs. With a 3:1 pure-to-drain ratio, smart touch control, and filter life reminders, this system provides efficient, eco-friendly hydration while saving water and reducing bottled water waste.
| Pros for Waterdrop - Replacement Filter for B-BY-TSU-W, Reverse Osmosis System, 1 Year - White | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Water Quality | There were no pros for this product— |