Features: Dual Functionality: Combines a water shut-off valves with an integrated filter to prevent sediment buildup and ensure clean water-flow, while also featuring anti-cross-flow technology for safe shower use. Anti-Leakage Design: Engineered with advanced sealing mechanisms to prevent leaks, reducing water waste and protecting your bathroom from water damage. Anti-Cross-Flow Protection: Prevents hot and cold water from mixing, ensuring consistent water temperature and safety during shower use. Easy Installation: Designed for quick and hassle-free installation, compatible with standard plumbing systems for bathrooms, kitchens, and more. Corrosion-Resistant: Made from quality, rust-proof brass and stainless steel, ensuring long-lasting performance even in high-moisture environments. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Copper + Stainless Steel Weight: 15g Size: 2.3x 1.8x 1.8cm Package List: 1/2/4/10PCS Water Shut Off Valves with Filter