The sleek and simple appearance of the Sumerian shower faucet - a fresh design that will bring life to any bathroom. The ceramic disk cartridge brings you a faucet built to last up to 600,000 uses. Easy-operated lever handle, an 8-inch touch-clean rain shower, and a variety of finishes give this shower fixture universal appeal. This shower faucet set is listed in the California CEC modernized appliance efficiency database system and the ECPA Department of Energy (DOE) qualified list. Rain shower head has WaterSense certification and is compliant with standard: EPA WaterSense specifications for showerheads(version 1.1, July 26, 2018). Rough-in valve, Rain shower head, and shower arm have ICC-ES PMG certification, compliant with standard: ASME A112.18.1/CSA B125.1-2018, plumbing supply fittings(the same standard as cUPC).