Aerostar Series 400 Pleated Furnace Air Filter 20x25x5 MERV 8 Replacement

The Aerostar Series 400 pleated furnace air filter provides reliable filtration performance with excellent airflow efficiency for residential, commercial, and industrial HVAC systems. Featuring advanced 100% synthetic filter media, this MERV 8 filter captures airborne particles such as dust, pollen, mold spores, dander, and other common contaminants while helping protect HVAC equipment.

The synthetic media is laminated to an expanded metal support grid on the air-exiting side, providing exceptional strength during installation while preventing pleat fluttering and maintaining consistent airflow. The moisture-resistant heavy-duty frame helps prevent warping, cracking, and distortion under normal operating conditions.

Designed as a 20x25x5 replacement filter for Honeywell and Lennox systems, the Aerostar Series 400 delivers dependable filtration with low airflow resistance and long-lasting performance. It is ideal for commercial buildings, schools, offices, industrial facilities, and HVAC applications requiring effective protection for coils, ductwork, and system components.