78W57 | SPST .27"WC Pressure Switch | Lennox Sensor Type_Duct **Key Features:** * M20x2

**Key Features:** * M20x2

The kit includes all necessary components for a seamless replacement

including the Jergens 802618 KLP Heavy Duty T-Handle

With a press union end connection

With its sturdy construction

78W57 | SPST .27"WC Pressure Switch | Lennox Sensor Type_Duct **Key Features:** * M20x2**Lennox Single Pole, Single Throw (SPST) 78W57 Pressure Switch** The Lennox 78W57 is a reliable and robust SPST pressure switch designed to monitor and control pressure systems in industrial settings. Its versatile design makes it suitable for various applications, including HVAC, refrigeration, and hydraulic systems. With a pressure range of 0. 03 to 0. 27 inches of water column (WC), this switch provides precise pressure monitoring and control. Its