ZURN AQUAFLUSH FLUSHOMETER 3.5 GPF CLOSET* Diaphragm operated brass flush valve with a polished chrome exterior Complete with wall flange with set scre w sweat solder kit control stop cover vacuum breaker flush tube and fixture spud escutcheon and securing n ut Closet: 3.5 GPF 1-1/2" top spud coupling Urinal: 1.5 GPF 3/4" top spud coupling