Lennox 57W79 Pressure Switch and electrical specifications match the

and electrical specifications match the manufacturer's requirements

The GKT1533 is compatible with a wide range of Trane condensing units and chillers that utilize 1-inch Rotolock valves

Will this fit a 3/16 inch or 1/4 inch shaft

including specific package units like the PGE036 series

Field technicians recognize the GKT1533 as the standard for Trane compressor services and Rotolock valve maintenance

Lennox 57W79 Pressure Switch and electrical specifications match theThe Lennox 57W79 Pressure Switch is a critical OEM safety component engineered for precise inducer draft monitoring in Lennox gas furnaces. Calibrated to a 0. 70" WC activation setpoint, this green pressure switch ensures the combustion blower is establishing sufficient static pressure before allowing the ignition sequence to proceed. As a direct furnace pressure switch replacement, it resolves common fault codes related to airflow verification and