Aerostar Series 1100 Pleated Furnace Air Filter 16x20x4 MERV 11

The Aerostar Series 1100 pleated furnace air filter provides reliable MERV 11 filtration for residential, commercial, and industrial HVAC applications. Featuring advanced 100% synthetic media, this 16x20x4 filter effectively captures dust, pollen, mold spores, pet dander, and other airborne particles while helping improve indoor air quality and protect HVAC equipment.

The filter media is laminated to an expanded metal support grid on the air-exiting side, preventing pleat fluttering and maintaining consistent pleat structure for dependable performance. The heavy-duty, moisture-resistant frame helps prevent warping, cracking, and distortion, while the bonded media pack reduces air bypass for improved filtration efficiency.

Designed for 16x20x4 HVAC systems, the Aerostar Series 1100 MERV 11 filter handles air velocities up to 625 FPM and offers long-lasting performance with low initial pressure drop. Its rigid construction and durable pleat design make it ideal for side-access filter housings, commercial buildings, schools, offices, and industrial HVAC systems requiring efficient medium-level filtration.