Cold Ceramic Cartridge for Altmans Phylrich & Sigma OLC4 CI 18.30.029

“Ceramic Tub Stem for Price Pfister Verve Windsor 910-030 910-0300” has been added to your cart. View cart

Bright brass cartridge with black oring white ceramic discs and blue bottom washer.

WHAT OUR CUSTOMERS SAY…

“Just before an event, we had a 9 7/8" round drain cover snap in half. It was an odd size and Noel's was the only place that seemed to have one that would fit. We couldn't leave the hole exposed during the event, and Noel's was kind enough to make sure it was overnighted to us. Their effort was truly appreciated and the cover fit perfectly! I highly recommend them! ”

-Linda C.

03/27/2026

$39.27

The Altmans OLC4 CI (also known as part number 18.30.029) is a cold-side 1/2″ ceramic disc faucet cartridge used across several premium plumbing brands. It is primarily a 1/4-turn replacement part that opens in a clockwise direction.

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: 80093 Category: Two Handle Ceramic Cartridges Tags: Altmans, Paul, Phylrich, Sigma Faucet

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The Altmans, Phylrich, and Sigma Cold Ceramic Cartridge (Part 18.30.029 / OLC4 CI) is a high-precision replacement valve designed to restore leak-free performance to high-end bathroom and kitchen faucets.

OLC4 CI 18.30.029

It is used on a variety of Altmans branded faucets and is interchangeable with specific cartridges from Phylrich and Sigma, such as the Sigma 18.30.029 and Phylrich LC499CNL.
1/4-turn
2 5/8″ length
16 point broach

Common questions about this product

Yes, this aftermarket part will replace your OEM 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…

“Prompt, competent service. Got it, installed it, everything works. Even shipped to Canada on a part that was difficult to find here. 5 Stars for sure. ”

-Jim

04/05/2022