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Kohler K-GP30320 Pressure Balance Adapter Plate

Grey plastic adapter plate with black rubber o-ring and washers.
Kohler K-GP30320 Pressure Balance Adapter Plate - Image 2

chat iconWHAT OUR CUSTOMERS SAY…

“Holy guacamole! They had a part moen had out of stock, shipped the next business day, and got to me the next day Ohio -> Tennesse. Super happy, double packed for safe shipment. I couldn't be happier unless they installed the part for me! ”
-Brian D.
06/08/2025

$28.47

 

The Kohler K-30320 is a genuine Pressure Balance Adapter Plate Kit manufactured by Kohler. It is primarily designed as an adapter for older-style Coralais single-control bath and shower valves. This kit acts as a vital bridge, allowing you to use newer-style pressure balancing units with your legacy shower setup to help prevent sudden hot or cold water fluctuations.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

SKU: 12856 Category: Tag:

By installing this adapter plate, you can upgrade your existing single-control shower setup to work flawlessly with the modern GP71969 cap assembly. It provides a watertight seal that eliminates temperature fluctuations and leaks without requiring an expensive, full-valve tear-out.

 

K-GP30320

 

  •  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

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Outstanding fast delivery on two pieces of an ancient Wolverine bath stem for Kohler - from the early 40s I think. The new one has a different body design, but it screwed directly into the old hot/cold tree and was the exact 6" length. Forty eight hours after installation now, and all remains fine. Also, kudos to the people who set up the website and ordering process. Great work - clear photos and info ! PS: I'm not an employee or family...lol. I retired from electrical wholesaling here outside Chicago and I appreciate a good job. ”
-JM C.
07/31/2026
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