Aquaflush Exposed Manual Diaphragm Flush Valve with 3.5 GPF, Sweat Solder Kit

  
Each flush valve contains a quiet GO BLUE dual-seal diaphragm with a clog-resistant bypass and chloramine-resistant seals for an extended lifespan and lower maintenance costs. The Z6000-YB-YC has optional flush rates ranging from a boosted 4.5 gpf full flush to a water-saving 1.6 gpf.