Kingston Brass KB2605KL Knight 4-Inch Centerset Lavatory Faucet, Oil Rubbed Bronze (Not CA/VT Compliant) Brass construction Duraseal washerless cartridge 4-Inch center set installation Max 1.2 GPM/4.5 LPM Water Flow Rate At 60 PSI (ASME standard) Compliant with California Energy Commission Title 20