Lennox 51W90 Pressure Switch, 0.65" WC, SPST

The Lennox 51W90 Pressure Switch acts as a safety device in the HVAC system, starting or shutting down the equipment if pressure rises or falls below thresholds.

• Real OEM buttons and switches support efficient HVAC operation for ideal indoor climate control
• Fits popular G43UF-60D-135-09, G43UF-48C-110-08, G51MP-48C-090-07 units and more (see FITS MODELS below for complete list)
• Common Equipment Type(s): Furnace Parts
• Pressure Range: 0.65" WC
• Configuration: SPST
• Product Type: Pressure Switch