Delta T13220-H2OT Classic Monitor 13 Series Shower Trim, Chrome SH 1.5 gpm,5.7 L/min Elegant simplicity for the entire home Requires R10000-UNBX Rough Valve Single lever handle for easy operation Delta Faucet is one of the first in the industry to qualify for the new WaterSense(R) program developed by the EPA for showerheads and handshowers Brass