Inside Cover for Flush Valves

What is this?

This is a professional-grade inside cover for commercial diaphragm flushometers. It is a critical internal component that sits directly beneath the outer chrome cover, serving as the secondary pressure seal for the valve’s internal works.

What does it do?

• Secures the Diaphragm: It provides the necessary downward pressure to hold the diaphragm assembly in place, ensuring a watertight seal around the perimeter of the valve body.

• Pressure Regulation: The cover helps maintain the upper pressure chamber of the valve. By keeping this chamber sealed, it allows the valve to close properly after a flush cycle.

• Corrosion Resistance: Made from high-quality engineered plastic, this cover is designed to resist mineral buildup and the corrosive effects of harsh water chemicals that can often seize metal parts.

• Easy Maintenance: This part is designed for high-traffic environments where frequent servicing may be required. Its material choice prevents it from "bonding" to the outer brass cover over time.

Will it fit my needs?

This is a standard replacement part for Royal and Regal series flush valves. If you are experiencing a leak from the top of your flushometer, or if your existing internal cover is cracked or warped from over-tightening, this is the exact replacement component required to restore your valve to factory specifications.

What comes in the box?

• (1) Engineered Plastic Inside Cover

The Inside Cover is a vital component for ensuring your flush valve maintains proper pressure and remains leak-free.