Repair of flush valve components, rather than replacement of the entire unit, saves money and resources. Zurn’s coupling (Part no. P6000-C32-CP) for AquaVantage® and AquaFlush® control stops is constructed of durable, chrome-plated cast brass. Zurn flush valve replacement parts and retrofit kits can be used to upgrade any diaphragm type flush valves. When you need a replacement part for repair or maintenance of a flush valve, trust Zurn for genuine, reliable parts.