Product Description About this item [Deep Filtration and IAPMO Certified] Based on independent testing, this filter can efficiently reduces PFAS, PFOA/PFOS, large-particle contaminants such as rust, lead, chlorine, heavy metals, chemical impurities, and sand through thorough purification for clean drinking water. The filter is made of high BPA-free and lead-free materials. It also can successfully reduce chlorine, taste, and odor. This filter is certified by IAPMO against NSF/ANSI 372 Standard and NSF/ANSI 42 Standard. It can lower lead when tested by a third-party laboratory against NSF/ANSI 53 standards. Please use the «WD-10UA» search term to review the 42&372 certification on the IAPMO website.[Innovative Design] Only a cold-water source should be used to power the filter. Its twist-and-lock construction and push-to-connect fittings enable installation in three minutes, three second replacement, and safety-assuring integration. This filter comes with a 3/8″ line that connects directly to US sinks’ standard 3/8″ feed water valves. The system is connected to 1/2″ and 3/8″ cold water pipes and faucets with the use of the 3/8″-1/2″ convertor fitting.[Solve Clogging Problem] By upgrading the filtration area, our filter now provides a 20X increase in dirt adhesion area, enhancing filtration capability while minimizing the risk of clogging.[Filter Replacement and Long Lifespan] This filter system may be upgraded with a UF filter or a MZ filter to meet your water needs. It is compatible with several filters with various functions. Each filter system has a maximum service life of 12 months or 8k gallons when used with municipal water, which is sufficient to cover the needs of an entire household.