Armstrong Air R102613-01 Pressure Switch

The Armstrong Air R102613-01 pressure switch is a reliable two-stage air pressure switch for OEM gas furnace applications. It monitors draft inducer pressure and proves proper venting before allowing burner operation, with a first-stage setpoint of 0.80. Designed as a direct replacement for Armstrong Air and Lennox-family equipment, it restores safe two-stage combustion-air sensing.