Repair of flush valve components, rather than replacement of the entire unit, saves money and resources. Zurn’s handle nut/coupling (Part no. P6000-M1-CP) is designed to fit AquaVantage® and AquaFlush® flush valves. It has a chrome-plated finish. 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.