Material: Made of solid brass to prevent rust and corrosion, spool control precision, good stability and durability. Recommended pressure: 0.1 MPa-0.5 MPa, cold water supply temperature: 5-29 C, hot water supply temperature: 55-85 C. The thermostatic valve is suitable for hot water supply pipe on the left and cold water supply pipe on the right. 38 degree scalding protection: which can be overridden by the temperature control, which is set to 38 C, temperature range from 20 to 50 C. Installation guideline: In the case of integrated shower valves, the handle must be removed and then the cartridge is installed separately. Lubrication may be required around the black rubber seals. Always make sure your water is out when assembling! !