Lennox X8310 20" X25" X5" MERV11 Expandable Filter

The Lennox X8310 20 Inch X 25 Inch X 5 Inch MERV11 Expandable Filter is a part of the air filtration system that enhances the HVAC system's concern with indoor air quality. MERV11 is designed for this expandable filter to capture a variety of sizes of airborne particle contaminants such as dust, pollen, mold spores, and pet dander. This filter is compatible with different models of Lennox air handlers and furnaces. Its shape is becoming wider to increase the surface area and capture the particles while at the same time facilitating the airflow.