The Sotara reverse osmosis Kitchen filtration faucet is a stylish and functional addition to any kitchen's water filtration system. (Water filtration system to be purchased separately. ) The Sotara filtration Faucet features a single-handle design on its arched form. This faucet is constructed of solid stainless & thus reduces lead in the water. You can feel safe about using it with your whole family. • Stainless Steel Construction CARTRIDGE • Ceramic disk cartridge STANDARDS • Certified to cUPC • Certified to AB1953 • Certified to NSF/ ANSI 61 • ADA for lever handle