Zurn Z6203 Metroflush piston operated exposed urinal flush valve- The Metroflush is an exposed, quiet piston type, chrome plated flushometer valve with polished exterior. Complete with Zurn MetroVantage chloramine resistant piston with a clog resistant filtered by-pass. The valve is ADA compliant with a non-hold open and no-leak handle feature, 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. Internal seals are made of chloramine resistant materials.