The Lennox Y5477 Air Filter from Filtration Group (Model 10371) is a high-quality replacement pleated media filter engineered to provide reliable, efficient air filtration for residential HVAC systems. Part of the Aerostar Series 400 line, this 20 x 15 x 1 inch filter features a MERV 8 rating that effectively captures airborne contaminants including dust, pollen, mold spores, pet dander, and lint while maintaining proper system airflow. Constructed with durable pleated filter media and a sturdy frame, the Lennox Y5477 helps improve indoor air quality and protects HVAC components from buildup and wear.

This MERV 8 pleated air filter is compatible with a wide range of Lennox furnaces, air handlers, and air conditioning units that require a 20 x 15 x 1 size, and is ideal for homes and spaces where balanced filtration performance and energy efficiency are priorities. The pleated design increases surface area for extended filter life compared to flat panel filters, reducing the frequency of replacements and helping keep your system running smoothly. Whether installing during routine maintenance or replacing an existing filter, the Aerostar Series 400 filter provides dependable performance you can trust.

 

Key Features:

Recommended Change Interval: Replace every 90 days or more frequently in homes with pets, allergies, or high dust conditions.