Lennox 49M5901 SureLight Two Stage Variable Speed Control Board 50V61-120-03
Lennox part # 49M5901,49M59. White Rodgers part # 50V61-120-03.
Lennox 49M5901 SureLight Two Stage Variable Speed Control Board 50V61-120-03
Lennox part # 49M5901,49M59. White Rodgers part # 50V61-120-03.
Lennox 49M5901 OEM SureLight Two Stage Variable Speed Control Board 50V61-120-04
Lennox part # 49M5901,49M59. White Rodgers part # 50V61-120-04.