Feature●➊ Pilot assembly and thermocouple replacement parts suitable for natural gas water heater●➋ Pilot tubing and thermocouple length 24 inch●➌ Thermocouple inlet thread is 11/32-32 UNS ,Pilot tubing inlet thread is 7/16-24 UNF fits many water heaters thermostat●➍ The orifice of aluminum pipe is natural gas, fits many but not all water heaters on the market●➎ Compatible with Desa, Reddy, All-Pro, Universal, NR, Sears, Remington and many other natural gas forced air heaters fit models: RLP55V, RLP125V, REM55PV, REM125PV, 85-FAC, 125-F, TB115, SPC-85, SPC125, BLP55VDescription Water Heater Pilot Assembly Includes Pilot Thermocouple and Tubing, 24 inch Length Natural Gas