Bristan Descent Concealed Dual Control Valve + Twin Stopcock The Descent showers combine perfectly with the Descent taps to add a touch of luxury to your bathroom. Features: 15mm inlet connections This shower valve has been designed to fit in any UK wall cavity and therefore only needs a 35mm deep cavity space Fitting depth including plasterboard and tiles is 45mm - 75mm Minimum cold water supply temperature is 4°c Maximum hot water supply temperature is 80°c Tech Specs: Product Width: 165mm Product Depth: 114mm Product Height: 355mm Product Weight: 3970g Colour: Chrome Material: Brass Finish: Chrome Plated Minimum Operating Pressure: 0.2 Maximum Operating Pressure: 5 Maximum Hot Water Supply Temperature: 65 Inlet Connection: 15mm Compression Outlet Connection: 15mm Compression