Overview Material : Carbon Fiber Product Dimensions : 11"D x 6"W x 6"H Item Weight : 0.01 Ounces External Testing Certification : ANSI Product Benefits : Removes sediment, chlorine, and residual chlorine, extends membrane lifespan, and is easy to replace, meeting NSF/ANSI standards. Removes sediment, chlorine, and residual chlorine, extends membrane lifespan, and is easy to replace, meeting NSF/ANSI standards. About this item Individually wrapped 6-month high capacity prefilter replacement cartridge pack for most standard RO filtration systems Experience clean, safe, and good-tasting water every time you turn on the faucet 3 pieces of 10" x 2. 5" replacement water filters included: 1x sediment filters, 1x granular activated carbon filters, and 1x carbon block filters. This filter pack does NOT include an RO membrane If you have trouble installing the filters, please refer to the user manual or contact us