Gerber DA603923 Check Valve for 1/2" & 3/4" Thermostatic Valve

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Gerber DA603923 Check Valve for 1/2" & 3/4" Thermostatic Valve - Image 2

Gerber DA603923 Check Valve for 1/2" & 3/4" Thermostatic Valve - Image 3

WHAT OUR CUSTOMERS SAY…

“Thank you the faucet works perfectly. When i spoke to American Valve they told me "no one makes a replacement stem". Good customer service.!!! Thanks again ”

-Joe B.

08/01/2024

$27.14

The Gerber DA603923 is a brass check valve designed for use with 1/2″ and 3/4″ thermostatic valves in plumbing applications. It is a genuine replacement part manufactured by Gerber.

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Gerber Brass Check Stop for 1/2″ & 3/4″ Thermostatic Valves

DA603923

Check valve / check stop.
Constructed of durable solid brass, which resists corrosion and tarnishing.
Designed for use with specific Gerber and Danze 1/2″ and 3/4″ thermostatic mixing valves, such as Model D155000BT.

Related document

Gerber D155000BT Thermostatic Valve Parts Breakdown

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…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”

-Pete L.

03/10/2026