Top outlet size - 3/4" BSP (25mm for shower column, bottom outlet size: 1/2" BSP (21mm for shower hose.Temperature and flow are individually controlled, Note: Your home needs hot and cold water circuits.High-grade high-quality brass, durable chrome finish, anti-scaling thermostatic control.The cold water is cut off automatically to prevent scalding. The hot water pipe is installed on the left side and the cold water pipe is installed on the right side.Safe and Comfortable - Water temperature range: 20-50°C, safety button temperature: 38°C. So you can enjoy a comfortable shower on cold winter days without worrying about sudden cold or hot water.product descriptiondetailWidth: 265mm.Valve diameter: 35mm.Shower hose not included.1 brass thermostatic shower valvecompatibleLow Pressure Gravity Feeding SystemPumped Gravity System (High PressureHigh pressure system without exhaust portCombined boiler high pressurenotesInstall hot water pipes on the left and cold water pipes on the rightWalls