Aerostar Series 1100 Furnace Air Filter 16x20x5 MERV 11 Honeywell & Lennox Replacement

The Aerostar Series 1100 pleated furnace air filter provides reliable MERV 11 filtration for residential, commercial, and industrial HVAC systems. Designed as a replacement for compatible Honeywell and Lennox media air cleaners, this 16x20x5 filter features advanced 100% synthetic media that captures dust, pollen, mold spores, pet dander, and other airborne particles while maintaining excellent airflow.

The synthetic media is bonded to an expanded metal support grid for superior pleat stability and consistent filtration performance. A heavy-duty, moisture-resistant frame prevents warping, cracking, and air bypass, while integral pleat separators and reinforced construction maximize dust-holding capacity, extend filter life, and maintain low pressure drop throughout operation.

Compatible with Honeywell FC100A1052 and select Lennox media air cleaner systems, the Aerostar Series 1100 16x20x5 MERV 11 filter installs without modification. It is an excellent choice for homes, offices, schools, healthcare facilities, and commercial buildings seeking improved indoor air quality and long-lasting HVAC protection.