Kingston Brass Gourmetier KS7198AL Restoration Single Handle Water Filtration Faucet, Brushed Nickel Solid brass material for durability and reliability 3/8-Inch -14 NPS male threaded inlet shank 1/4-Inch turn ON/OFF water control mechanism for smooth turning operation Premium grade O ring seals for long lasting joints Meet ANSI A112.18.1M standard Not suitable for reverse osmosis (R.O) or instant hot water systems. Cold water use only.