Zehnder 15mm Angled Radiator ValvesZehnder's range of original, quality and exclusive radiator valves complement and enhance the design of the radiators. A wide selection of manual and thermostatic valves are available: Traditional radiator valves and Aston radiator valves to match the more traditional style of radiator or setting; Square radiator valves to match the new stainless steel towel rails; Yucca radiator valves specifically for the Yucca plus the Chromax radiator valves