Peerless RP71445 Stem Unit Assembly Seat and Spring, Bonnet Nut and Washer 1.5 gpm, 5.7 L/min Designed exclusively for Peerless faucets Made to original specifications Rigorously tested to ensure quality performance Peerless is one of the first in the industry to qualify for the new WaterSense(R) program developed by the EPA for showerheads and handshowers.