Kingston Brass KB3972BL Vintage Widespread Lavatory Faucet with ABS Pop-Up Drain, 5-3/4", Polished Brass Drip-free washerless cartridge system Designed for a lifetime of performance Meets ASME A112.18.1, ANSI/NSF 61 Sec. 9 code Max 1.2 GPM/4.5 LPM Water Flow Rate At 60 PSI (ASME standard) Compliant with California Energy Commission Title 20