Zurn model# ZER6000PL-WS1-CPM is a 1.6 GPF AquaSense exposed closet flush valve. This exposed, quiet diaphragm-type, chrome plated flushometer valve with a polished exterior. Complete with chloramine resistant, dual seal diaphragm with a clog resistant by-pass. The valve incorporates a 6 VDC motor actuator, a battery powered automatic sensor, high impact resistant polycarbonate housing and chrome plated metal cover with manual override push button and 10 degree angled sensor, high back pressure vacuum breaker, one piece hex coupling nut, adjustable tailpiece, spud coupling and flange for top spud connection. Control stop has internal siphon-guard protection. The AquaFlush Plus is also furnished with a sweat solder kit, vandal resistant stop cap, and cast wall flange with set screw. Internal seals are made of chloramine resistant materials.