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Factory-installed fan prover switch ensures appliance shutdown if venting fails
ensuring the system remains offline after a low-water event until manually cleared by a technician
This direct drive blower motor features a versatile design that covers 1/4 HP
offering efficient power closed/spring return open (normally open) operation
Flexible Mounting: Multi-poise motor allows for installation in any orientation to fit tight duct layouts
Lennox 73M72 Extension Kit Refrigerant Factory-installed fan prover switch ensuresThe Lennox 73M72 is a critical Vertical Vent Extension Kit specifically engineered to modify the venting system on compatible high efficiency furnaces and SG 150 units. When standard flue runs aren't enough to clear building obstructions or meet local code for roof terminations, this OEM replacement part provides the necessary height for proper exhaust gas routing. For a tech in the field, this kit is essential for maintaining the correct 1 4 inch per
US$ 2631.47
US$ 1999.47
US$ 110.00