Restored Waterdrop Water Filter for Sink Faucet, 4000 Gallons Countertop Water Filter System and Filter Life Reminder, WD-CTF-06 (1 Filter) (Refurbished)

Waterdrop was founded in 2015 with a commitment to improving global drinking water quality. Dedicated to meeting global household water needs, ensuring water safety, and contributing to human well-being, Waterdrop provides filtered water access to people worldwide.

• ‌Compatibility & TDS Note: This faucet-mounted system does not reduce TDS and is designed for standard faucets only. It does not fit pull-out, handheld, spray-style, or sensor faucets, and some special-shaped faucets may not fit. Please check the product images for fit guidance; if you’re unsure, take a photo of your faucet and contact support before purchase.
• Advanced Filtration (Tested): Third-party tested filtration is designed to help reduce chlorine, taste & odor, colloids, rust, sediment, certain heavy metals, and other common tap-water impurities.
• Capacity & Tracking: Rated for up to 4,000 gallons or about 6 months of use, whichever comes first, depending on local water conditions. Includes a mechanical life tracker—align the start month at installation to help monitor replacement timing.
• Quick, Tool-Free Installation: Attaches directly to the faucet with no tools and can typically be installed in about 1 minute, helping you switch to filtered water quickly.
• Certified Materials & Filter Requirement: Certified by IAPMO R&T to NSF/ANSI 372 (lead-free materials, ≤0.25% lead). This system supports WD-CFF-03 replacement filters only. Note: the mechanical reminder does not rotate automatically—use the markings to track filter life manually.