Moen 8312M05 Commercial M-Dura 3/4-Inch Urinal Flush Valve .5 GPF, Chrome Solid cast brass construction with AccuSet Piston Technology with self-cleaning stainless steel filter All brass shut-off with chloromine-resistant face seal 5 year limited warranty; americans with disabilities act (ADA) compliant, Buy America Act, WaterSense Compliant High back-pressure vacuum breaker with 15-120 psi operating range