Features: Effectively solve the problem of gas water heater due to thermocouple damage, piloting component failure, intermittent heating, poor ignitions and low ignitions heating efficiency, to ensuring that the water heater returns to normal work and improve the reliability of household hot water supply. SP20824 piloting Assembly replacement set replace SP20754, SP21058, SP21059, SP20800, suitable for water heaters. The set supplies the following components: Burners Orifice, Screws, Outdoor Flame Arrestor with Mounting Hardware Includes: thermopiles, sparker, and piloting assembly. Each Piece are tested with ignitions and welding , leaking tests. The designed head is better than the previous with high thermo milivolt and stable to open the gas control valves. Easy installation process: Users only need to use basic tools such as screwdrivers and pliers to complete the installation easily. Be sure to close the gas valves before installation, and use soapy water to check connection for air leakage after installation to ensuring safe use. Specifications: Component: Stainless Steel Size: As Shown in the Picture Package Includes: 1set Natural Gas piloting Assembly note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.