Urinal Flush Valve, SLOAN URINAL VALVE Sloan urinal valve Exposed urinal flush-o-meter, for 3/4" top spud bowls Quiet, exposed, diaphragm type, chrome-plated closet flush-o-meter with the following features: Dual Valve body, cover, tailpiece and control stop shall be in conformance with ASTM Alloy Classification 1.5 GPF.