Concealed, quiet diaphragm-type, rough brass flushometer valve with Zurn® AquaVantage® TPE, chloramine resistant, dual seal diaphragm with a clog resistant, triple filtered by-pass. The valve incorporates a non-hold-open, no leak pushbutton with a 1 in metal pushbutton, high back pressure vacuum breaker, 1-piece hex coupling nut, adjustable tailpiece and spud coupling for back spud connection. Control stop has internal siphon-guard protection and sweat solder kit. Internal seals are made of chloramine resistant materials.