How do I identify if the 70-41854-02 is the correct fit

The Armstrong Fluid Technology 425868-005 Spacer is a precision-engineered S

ensuring rapid installation and reliable equipment uptime

when equipped with a factory-approved vent limiting device

Fasco A219 Vent Assembly 320788-704 How do I identify ifFor high demand HVAC service calls, the Fasco A219 Vent Assembly serves as a direct OEM replacement draft inducer for Lennox furnace models. This 120V centrifugal blower is engineered with a 1 65 HP shaded pole motor, delivering a consistent 3000 RPM to ensure proper flue gas evacuation and pressure switch engagement. Built for reliability in demanding environments, it features thermally protected windings and sleeve bearings for quiet, long term