This coil heater is known as CL87-065C. The coil heater inner diameter is 0.875", and the coil heater length is 6.50". The electric coil heater leads are 36inches long with stainless steel overbraid. The electric heating coil also comes with a ground wire and a type J ungrounded thermocouple. The coil heater is made for 240 volts and 1000 watts. This Viper coil heater has a .13 inch by .13 inch square cross section. This coil heater has a CL1 lead orientation like the pictured heaters.