Qual-Rad 150W Electric Element Heated Towel Rail Chrome White 991447 IP64 Rated Electric Towel Rail Heating Element , Available in 150W Length 350mm ( 150W) Diameter 12.5mm , Cable Length 1200mm, 1/2" BSP Standard Thread , CE, TUV Certified, Thermocut out 70C Degrees The element must only be fitted at the bottom of the radiator.