Gerber DA603933 Check Valve for Pressure Balance Valve

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Brass cartridgw with black rubber seals and stainless spring.

WHAT OUR CUSTOMERS SAY…

“This place rocks! I have replaced two parts for an old Gerber faucet in the laundry tub. After the spout was leaking, I could not find the right washers anywhere. I had to replace the whole spout, which they had in stock, and it was priced competitively. Now, not a drop leaks. ”

-John D.

02/03/2024

$27.14

The Gerber DA603933 is a brass check valve designed for use with pressure balance and thermostatic shower valves. It is a genuine replacement part manufactured by Gerber Plumbing

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The Gerber DA603933 is a brass check valve stop designed for pressure balance and thermostatic shower valves. It serves as a built-in water shut-off mechanism directly on the shower rough-in valve body, allowing you to isolate and service the shower cartridge without turning off the main water supply to the entire home.

DA603933

Constructed with solid brass, which helps resist corrosion and tarnishing.
For use with pressure balanced valves.

Common questions about this product

Yes, this is the OEM recommended part.

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

We will make sure you have the right part.

WHAT OUR CUSTOMERS SAY…

“Love Noel's Plumbing Supply! They are one of my favorite oddball plumbing parts purveyors. As a professional plumber, I rely on sites like Noel's to keep antique and rare fixtures alive. My customers and I are so grateful! ”

-Danielle E.

03/25/2026