Aerostar Series 400 Pleated Furnace Air Filter 20x20x1 MERV 10 Standard Capacity

The Aerostar Series 400 pleated furnace air filter is designed to improve indoor air quality while maintaining efficient and consistent airflow throughout your HVAC system. Constructed with advanced 100% synthetic filter media, it effectively captures airborne particles such as dust, pollen, mold spores, lint, and pet dander for cleaner, healthier indoor air.

Featuring a MERV 10 efficiency rating, this pleated air filter provides enhanced filtration while maintaining low airflow resistance to support optimal HVAC performance. Its durable pleated design increases dust-holding capacity, helping protect coils, ductwork, and other HVAC components from dirt and debris buildup.

Perfect for residential and commercial HVAC systems, this 20x20x1 furnace filter should be replaced every 1 to 3 months depending on system usage, indoor air quality, and environmental factors such as pets, allergies, and seasonal dust levels.