Check Valve for 40MM Single Handle Faucet Cartridges

“Kohler K-GP77548 Ceramic Cartridge for Coralais & Fairfax Faucets 210714 1297767 A4933” has been added to your cart. View cart

Tan plastic check valve with blue rubber seal.

Check Valve for 40MM Single Handle Faucet Cartridges - Image 2

Check Valve for 40MM Single Handle Faucet Cartridges - Image 3

Check Valve for 40MM Single Handle Faucet Cartridges - Image 4

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

$22.47

Check valves for faucet cartridges, are designed to prevent backflow and ensure unidirectional water flow. They are essential in single-handle shower faucets to control temperature and prevent mixing. These components are crucial for maintaining proper, consistent water pressure and flow.

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

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Check Valve for Single Handle Ceramic Cartridges

Pressure Balancing: In single-handle shower and bath faucets, check valves help maintain a consistent temperature by preventing sudden pressure changes.
Cross-Flow Prevention: Prevents water from a high-pressure line (e.g., cold) from flowing into a lower-pressure line (e.g., hot) when the faucet is off.

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.

Yes, this aftermarket part will replace your OEM part.

WHAT OUR CUSTOMERS SAY…

“Noel's Plumbing Supply found this place on Google maps. In and out service. The person I was speaking to the desk offered me a selection knew exactly what I needed price was really reasonable. You don't know how much it means to a homeowner to be able to come in without any run around trying to sell you something you don't need. I recommend this establishment to all my family and friends. ”

-Steve C