The Rheem-Ruud SP20151 Water Heater Burner Replacement Kit is a replacement component designed to restore proper burner operation in compatible gas-fired water heaters. The burner assembly mixes and ignites gas to generate heat beneath the tank, allowing the water heater to efficiently heat and maintain hot water. It is used with compatible Rheem and Ruud residential gas water heating... https://www.partshnc.com/sp20151-rheem-water-heater-burner-replacement-22v40sfn22v59fb