The coil heater part number is comparable to the SCH0090, or it is also known as CL87-031A. The coil heater inner diameter is 0.875", and the coil heater length is 3.125". The electric coil heater leads are 36" long with stainless steel overbraid. The electric heating coil also comes with a ground wire and a thermocouple. The coil heater is made for 240 volts and 550 watts. This Viper coil heater has a .13" by .13" square cross section. CL1 through CL5 Lead Orientations- Click here to see the type CL1 lead orientation that this coil heater has.