90 inches of water column (W

the White-Rodgers F61-2301 Wall Plate is the professional standard

use a multimeter to check for continuity instead

Compatible with 200RB series solenoid valves including 4

Lennox 24W98 Pressure Switch Els PW 17895 90 inches of water columnEnsure the safe and efficient operation of residential or commercial heating equipment with the Lennox 24W98 Pressure Switch. This factory authorized OEM replacement part is engineered for high precision monitoring of flue gas and combustion air pressure. Designed to actuate at . 31" WC, this SPST (Single Pole Single Throw) switch serves as a critical safety component, preventing the furnace from firing if proper venting is not detected. This unit