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Butler Mill and Brassworks 3/4" Exposed Thermostatic Cartridge and Brass O Ring 20 Point 88.30.326

  • $315.00

Product 88.30.326

This brass thermostatic cartridge is part of a mixing valve that mixes hot and cold water to achieve a desired water temperature. It prevents very hot water from scalding your skin.

Includes Brass O Ring for proper fit. The Brass O Ring rests at the top of the Thermostatic Cartridge, between the Thermostatic Cartridge and the Temperature Control Handle.

Replacement for these cartridge numbers:

  • Coventry Brassworks 88.30.301
  • Butler Mill and Brassworks Ltd.
  • Thermostatic Cartridge 20 Point.
  • SIGMA 19.30.183
  • SIGMA 77.30.233
  • SIGMA 77.30.234


Ships in 1 to 2 business days.


  • Installation Instructions
  • When replacing this thermostatic cartridge, calibrate the cartridge by setting the hot and cold temperature limits (see the Installation Instructions), to protect the user while bathing.