Top Factory Direct Filters Deals for September 2025

The Aerostar 12x16x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

Keep your commercial space's air clean and your HVAC system protected with our 25x25x4 air filters. Built for durability and performance, these filters come in multiple MERV ratings to suit different air quality needs, from standard dust control to advanced particle filtration. Ideal for offices, retail spaces, and other commercial settings, these filters help maintain a healthier environment while improving system efficiency. Factory Direct Filters provides reliable, cost-effective solutions for businesses of all sizes. Get yours now and ensure better air quality for your workplace.

The Aerostar 14x16x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

Upgrade your home's air quality with our 10x45x1 MERV-rated air filters. Designed to fit perfectly in your HVAC system, these filters trap dust, pollen, and other airborne particles, helping you breathe easier. Choose from various MERV ratings to match your needs, whether it's basic dust capture or enhanced allergen reduction. Factory Direct Filters offers high-quality, affordable replacements to keep your air fresh and your system running efficiently. Order yours today and enjoy cleaner, healthier air at home.

The Aerostar 15x25x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

The Aerostar 21x21x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

Ensure your home's air stays fresh and clean with our 16x32x2 MERV-rated air filters. Perfectly sized for your HVAC system, these filters effectively capture dust, pet dander, and other airborne irritants, promoting a healthier living space. Select the MERV rating that fits your needs, from basic filtration to higher efficiency for allergy sufferers. Factory Direct Filters delivers premium-quality filters at unbeatable prices, making it easy to maintain your system and improve indoor air quality. Order today and breathe easier in your home.

The Aerostar 14x20x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

The Aerostar 16x16x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

The Aerostar 14x24x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

The Aerostar 18x20x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

The Aerostar 12x18x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

These 10x12x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

The Aerostar 12x24x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

These 12x14x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

The Aerostar 15x20x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

The Aerostar 20x25x4 commercial HVAC air filter is ready to filter the air in your home or office. Choose the MERV rating that suits your lifestyle and start filtering cleaner air through your air conditioning or furnace system.

The Aerostar 12x24x4 commercial HVAC air filter is ready to filter the air in your home or office. Choose the MERV rating that suits your lifestyle and start filtering cleaner air through your air conditioning or furnace system.

The Aerostar 24x24x4 commercial HVAC air filter is ready to filter the air in your home or office. Choose the MERV rating that suits your lifestyle and start filtering cleaner air through your air conditioning or furnace system.

The Aerostar 24x36x1 pleated air filter delivers clean air by replacing your air system's vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.

These 16.25x21.5x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.