Always match the OEM Lennox 20J83 specs

it must be replaced immediately using this assembly to prevent CO leaks and maintain chamber pressure

like the Fenwal 05-129887-036

ensuring proper fitment and electrical ratings

This remote bulb thermostat features a 30

McDonnell & Miller 751P-MT-SP-120 Control Freon Always match the OEM LennoxThe McDonnell & Miller 751P MT SP 120 (Part Number 176295) is a heavy duty 120Vac manual reset low water cut off engineered for precise level monitoring in commercial and industrial hot water and steam boilers. As a CSD 1 compliant safety control, this unit is designed to interrupt the burner circuit the moment a low water condition is detected, requiring a manual intervention to resume operation once safe levels are restored. This specific 751P