Hudson Reed's Kristal twin concealed thermostatic shower valve has solid, chunky control knobs. The use of four sticks make it easy to adjust and manipulate regardless of the quantity of slick soap washing over your hands.This diverter valve has full thermal protection to prevent scalding in the event of a hot or cold water shut off, and uses state of the art ceramic cartridges that are highly resistant to calcium build up - even in hard water areas! This product has full functionality with all water systems and has excellent flow rates, even at low pressures. The Hudson Reed Kristal 1 Outlet Concealed Thermostatic Shower Valve is manufactured using high quality brass and ABS.The Hudson Reed Kristal concealed shower valve is also WRAS Approved.Features:Minimalist sleek designWRAS approvedCan be fitted vertically or horizontallyAccurate flow controlThermostatic control to +/- 2 to 3 °C even if the water pressure fluctuatesIn the event of hot or cold water failure, the valve will shut do