Genuine Mira Excel / Select MK1 Thermostatic Cartridge (Pre-2003)
Genuine Mira Spare SKU: 1.903.33.6
The Mira 903.33 is the official replacement thermostatic cartridge for the original Mira Excel and Mira Select MK1 shower valves. This universal assembly is engineered to work with both high-pressure and low-pressure systems, providing accurate temperature control and safety for older Mira installations.
⚠️ Check Your Shower Model
This cartridge fits Mira Excel and Select models manufactured PRIOR to March 2003.
Compatibility & Replaces
The 903.33 is the current consolidated replacement for several discontinued Mira parts:
- 903.27 (Low Pressure variant)
- 903.28 (High Pressure variant)
- Select MK1 Assemblies
Product Features
- Adjustable: Includes temperature adjustment key.
- Universal: Suitable for Gravity, Combi, and Pumped systems.
- Safety: Provides thermal shutdown to prevent scalding.
- Genuine: Direct from Mira Showers.