this gauge is built with a rugged 304 stainless steel case and a durable polycarbonate lens to withstand harsh field conditions

Will this switch fit my specific furnace model

Contractors should verify the actuation points against the system

the capacitance must remain 50 MFD

Reznor 205442 Pressure Switch Els PW 17895 this gauge is built withThe Reznor 205442 Pressure Switch is a high precision HVAC safety control designed to verify proper combustion air and draft conditions before allowing ignition. Calibrated at . 20" WC (water column) with a Single Pole Single Throw (SPST) configuration, this white label pressure switch is a critical OEM replacement part for maintaining the operational integrity of commercial gas fired unit heaters and Reznor HVAC systems. Featuring dual 1 4" barb