This switch is specifically tuned to the -1

Optimized Airflow: The 27-degree pitch profile maximizes heat dissipation across the coils for improved system efficiency

Why is my inducer running but the pressure switch is not closing

and 5-blade propellers

High Thermal Stability: Engineered for continuous duty in condenser fan assemblies where heat dissipation is critical

Lennox X8309 Filter 323080-701 This switch is specifically tunedThe Lennox X8309 is a genuine OEM replacement filter media designed for high efficiency filtration in Healthy Climate air cleaner cabinets. This 16x25x5 expandable filter features a MERV 11 rating, providing a significant upgrade for residential and commercial HVAC systems by capturing up to 85% of airborne particles between 3 and 10 microns. Unlike standard cartridges, this pleated air filter uses an expandable media design that ships collapsed and