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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

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“After trying all over my area, I couldn't find the part for the faucet in my older house. The part I needed was found on the first try on their website and ordering was very easy. It was after hours, but someone responded to my text right away. The part was shipped the next business day. After putting the new part in the faucet works better than it has for years! ”
-Mark B.
06/25/2026

$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.

 

 

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