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1/2″ Thermostatic Shower Cartridge for Sigma Faucet 18.30.352 16 Point

Bright brass stem with white plastic cartridge with black rubber o-ringa and copper thermo.
Bright brass stem with white plastic cartridge with black rubber o-ringa and copper thermo.

chat iconWHAT 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

$221.47

 

The 18.30.300 is a 1/2″ Exposed Thermostatic 16-Point Cartridge designed as a replacement cartridge for exposed shower systems.

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: 12072-1 Category: Tag:

Are you dealing with a leaking shower or erratic water temperatures? Stop temperature spikes and restore perfect temperature control with the 18.30.352 1/2″ Exposed Thermostatic 20-Point Cartridge. Designed for the an exposed valve system and compatible Sigma thermostatic shower sets. Engineered with precision for a smooth DIY installation, this cartridge is the ultimate cost-saving fix to return your luxury shower to its peak performance.

 

147208

 

  • 4″ length
  • 20 point brass tip.

 

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…

“Hey these guys are awesome! If you need a part for a fixture they have it send a picture and they can tell you what it is, they know their stuff, they have the weird obscure things you can't find unless you get a whole trim kit or whatever. Worth the trip and the money. They save you tons of time definitely visit ”
-Justin H.
06/05/2026
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