Aerostar Series 1100 Pleated Furnace Air Filter 20x20x5 MERV 11 Honeywell Replacement

The Aerostar Series 1100 pleated furnace air filter provides reliable MERV 11 filtration performance for residential, commercial, and industrial HVAC applications. Designed as a Honeywell FC100A1011/U replacement, this filter is compatible with F100 and F200 Media Air Cleaners while helping capture airborne particles such as dust, pollen, mold spores, and other contaminants.

Featuring 100% synthetic filter media with ASHRAE 52.2 MERV 11 efficiency, the Series 1100 filter uses an expanded metal support grid on the air-exiting side to prevent pleat fluttering and maintain consistent airflow. The heavy-duty moisture-resistant frame and bonded media pack help prevent air bypass while providing durable performance.

Designed for 20x20x5 HVAC systems, the Aerostar Series 1100 filter offers low initial pressure drop and extended service life through rigid construction and deep pleat design. It is ideal for residential systems, commercial buildings, schools, and industrial applications requiring efficient filtration and reliable HVAC protection.