Waterdrop TST-UF Replacement Filter Pack (1-Year) – 4 Filters for TST-UF & TST-B Under-Sink System

All-in-one replacement pack for your Waterdrop under-sink filtration

Keep your Waterdrop TST-UF or TST-B 3-stage under-sink system performing at its best with this 1-year replacement pack. The four filters are designed to fit directly into your existing filtration assembly, offering a practical way to refresh your water filtration without guesswork. This set is built to work with the Waterdrop WD-TST-UF stainless steel model, helping you maintain a steady, reliable filtration routine year after year.

From the first pour, you may notice a difference in taste and clarity. The combination of polypropylene filter media, an ultrafiltration membrane, and activated carbon is intended to reduce visible particles and odors while preserving the natural character of your water. This pairing supports everyday uses—whether you’re filling a glass, preparing coffee, or cooking, the filtration is designed to suit common household needs.

The core filtration elements work together to support a consistent flow and dependable filtration. The ultrafilter targets very small particulates, while activated carbon helps minimize odors and off-tastes. When used as part of the 3-stage system, these filters can contribute to clearer water with a fresher profile, helping you enjoy water that feels more refreshing, even during busy mornings.

What’s included

• 2 x P1 polypropylene depth filters
• 1 x U2 ultrafiltration membrane
• 1 x C3 activated carbon block
• Replacement for Waterdrop TST-UF and TST-B 3-stage systems

How the filtration supports everyday use

• 0.01 micron ultrafiltration membrane targets very small particulates for cleaner-tasting water
• Activated carbon reduces odors and may improve overall flavor and aroma
• Rust, sand and other larger particles can be filtered out early in the process
• High-flow performance helps quick-fill scenarios, such as coffee and tea preparation
• Designed for straightforward replacement by unscrewing the housing and swapping in the new elements

Flow and performance matter in daily routines. With a potential flow rate up to 1.59 GPM, you can fill an 8-ounce cup in about 2.3 seconds, making the replacement pack a practical option for households seeking efficiency alongside dependable filtration. The pack’s design emphasizes compatibility and ease, providing a cohesive upgrade path for your existing TST-UF or TST-B setup.

Installation notes and real-world use

Installing the filters is designed to be straightforward for many homeowners. The external housing unscrews to reveal the internal elements, supporting a quick replacement without special tools. This simplicity can help minimize downtime and keep your kitchen tasks moving smoothly. Real-world use often centers on everyday hydration, cooking, and beverage prep, where consistent water quality can contribute to a better overall routine and a more enjoyable flavor profile in daily tasks.