B & K Proline 889-581 Frost Free Faucet Cartridge

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Brass cartrdige with black rubber o-rings.

B & K Proline 889-581 Frost Free Faucet Cartridge - Image 2

B & K Proline 889-581 Frost Free Faucet Cartridge - Image 3

WHAT OUR CUSTOMERS SAY…

“The cartridge in my kitchen sink broke last week so I've been without that sink for a whole week. I ordered a replacement from Noel's, which I could not find anywhere else and it worked perfectly. Thank you! You saved me! ”

-Matt F.

09/19/2025

$28.47

The ProLine 889-581 is a specific ceramic cartridge used for repairing old-style frost-free outdoor faucets (sillcocks) made by B&K Mueller.

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.

SKU: 23205 Category: Hydrant Hose Faucet Parts Tag: B & K Products

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Repair your outdoor faucet with the authentic B&K Proline 889-581 ceramic cartridge. Designed specifically for older “old style” ProLine frost-free faucets (not compatible with new models), this 3-13/16 inch cartridge restores 1/4-turn, leak-free operation to your wall hydrant.

889-581

It is specifically for the “old style” B&K Mueller ProLine frost-free faucets and not compatible with the newer models.
It is a 1/4-turn cartridge, meaning the water flow goes from off to on with a quarter turn of the handle.
The cartridge provides key internal flow control and a water-tight connection within the sillcock valve body.
3 13/16″ Length

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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…

“Fantastic! I walked in with parts to the faucet in my vintage sink and walked out with everything I needed. Chain hardware stores suggested I get a whole new sink and/or would not be able to do it without a plumber. The employee at Noels took a quick look, knew what it was, and had it in stock. I was able to fix my sink in two minutes with their help! ”

-Elizabeth A.

03/14/2021