Kohler K-GP30320 Pressure Balance Adapter Plate

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Grey backing plate with black o-ring and lubricating grease for easy installation.

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02/23/2026

$26.47

The Kohler K-GP30320 is a pressure balance adapter plate kit designed to allow the use of newer-style pressure balancing units with older Kohler Coralais shower valves. The part number for the kit is often listed as both K-GP30320 and 30320.

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Kohler Pressure Balance Adapter Plate

It is used as an adapter for older style Coralais bath and shower single control valves to be compatible with the newer-style plastic balancing valve (GP71969 cap assembly).
Kohler GENUINE Part
Used with GP71969 cap assembly
Includes o-ring and lube capsule

K-GP30320

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…

“It is so nice to see you guys are still rocking and providing the best service for unique plumbing parts. I first used you guys 20 plus years ago when my brother turned me on to you. I live in Nashville now and was searching the entire region for a particular cartridge and you are the only one that had it. Hands down there's not many like you and you've always provided a great service and I'm glad to see you doing it now even online! ”

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01/11/2022