This is a thermostatic cartridge which is a suitable replacement for the Watermark CRT-506.4 (CRT506.4) 3/4″ inch and 1/2″ inch shower valves and is compatible with the following Watermark wall mounted valves: – Watermark SS-TH1000 1/2″ thermostatic valve with integral stops and check valves – Watermark SS-TH2000 1/2″ thermostatic valve and volume control with integral stops and check valves – Watermark SS-TH3000 3/4″ thermostatic valve with integral stops – Watermark SS-TH4000 3/4″ thermostatic valve and volume control with integral stops and check valves – ZEx51 Zen Stone Thermostatic Shower Valve with 1 Dial, Trim PartsNeed help? Send us a photo of the cartridge you’re looking for. Send us a photo of the cartridge you’re looking for page.
