Brass Thermostatic Cartridge, Shower Mixer Valve Repair Kit High-quality material: The faucet spool is made of full copper, which is sturdy and durable for long-term use. Durability and value: Faucet cartridges are manufactured with exceptional quality and value in mind. Easy installation: No need to drill holes in the faucet; simply insert the valve into the faucet and tighten it. Temperature range: 20 - 48 degrees Celsius, with a safety override knob set at 38 degrees Celsius. This valve is compatible with built-in thermostats and stick thermostats. If the water temperature is unstable or fluctuates between hot and cold, the thermostat may need replacement. Color: Brass Material: Brass Package Contents: 1 x Thermostatic faucet cartridge Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3 cm.