Thermostatic Cartridge for Bristan CART 06734B which is a push fit installation with a spring. This is not the threaded screw in version of the cartridge. Please note, this cartridge is unthreaded. The threaded version of the thermo cartridge doesn't come with a spring.
Bri...
Bristan NUT 04755 Retaining Nut for CART18 06734B Thermostatic Cartridge
This retaining nut is used to hold the push fit CART18 06734B cartridge in the valve.
Diameter of Hex Nut (flat to flat): 29.8mm (30mm)...