Kingston Brass KB522B Americana 4-Inch Centerset Single Acrylic Handle Lavatory Faucet with Brass Pop-Up, Polished Brass Brass construction Duraseal washerless cartridge Clear acrylic handle; Brass pop-up included Max 1.2 GPM/4.5 LPM Water Flow Rate At 60 PSI (ASME standard) Compliant with California Energy Commission Title 20