Flush Valve Parts & Accessories

Repair parts and accessories for commercial flushometers: diaphragm and repair kits, vacuum breakers, handle assemblies, stops, flange kits, spuds and urinal parts. Over 95% of what is stocked here is commercial-grade.

The diaphragm is what fails. It is a rubber membrane that opens and closes the valve on each actuation, and as it hardens or perforates the valve either runs continuously or fails to deliver a full flush. Replacing it is a ten-minute job and restores the valve, which is why a rebuild kit is almost always the answer rather than a new flushometer.

Match the flush volume, not just the model. Flushometers are built for specific gallons per flush — 1.28, 1.6 and 3.5 all appear here, plus dual-flush and 0.125 gpf urinal versions — and fitting a kit of the wrong rating changes the fixture's water use and can break its WaterSense listing.

The vacuum breaker is a code-required backflow device, not an optional part; a missing or split one fails inspection.

Most of the range is Sloan: diaphragms, washer sets, handle assemblies, vacuum breakers and repair kits, many in contractor packs. Zurn P6000 rebuild kits are listed by flush valve family (AquaFlush or AquaVantage) and gallons per flush.

Frequently asked questions

Why does my flushometer keep running?

A worn or dirty diaphragm is the most common cause. A rebuild kit for that valve model replaces the diaphragm and the other wear parts.

How do I pick the right rebuild kit?

Match the brand, the valve model and the gallons per flush. Zurn kits, for example, are made for 1.28, 1.6 and 3.5 gpf water closets and for 0.125, 0.5 and 1.0 gpf urinals.

Can a manual flush valve be converted to sensor operation?

Some can. The Zurn ZERK-CPM AquaSense E-Z Flush is a retrofit kit for existing manual valves. Check that it lists your valve before ordering.

Related: Sloan, Zurn, toilet repair parts, faucet parts.