FeaturesProtects metal and plastic water-filled pipes up to 38 mm (1-1/2 in)in DiaPre-assembled and ready to installPlugs into a standard 120 VAC outlet, must be GFCI protectedIntegral thermostat saves energy by powering the cable only when neededDurable components include tough XLPE inner insulation, continuous ground braid and weather resistant PVC outer jacketPre-Terminated, Activated and De-Activated by Integral Thermostat