Kingston Brass NB3630PX Water Onyx Pressure Balanced Tub & Shower Faucet with Porcelain Cross Handle, Black Stainless Steel High quality brass construction for durability and reliability Durable washerless cartridge; Pressure Balanced Valve for your safety BLACK ONYX finish meets and exceeds industry requirement - ASTM B117 and ASTM B368 Max 2.0 GPM/7.6 LPM Water Flow Rate At 80 PSI on Showerhead Compliant with California Energy Commission Title 20