Air Conditioning Filters

These 12.25x15x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 13x21.5x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Blueair 500 and 600 Series Particle Filter with Carbon Sheet set of 3

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.

Blueair Particle filter for PRO series

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 16x24x1 Aerostar measures 15 1/2" x 23 1/2" x 3/4" actual, sized for a nominal 16x24x1 return. Common spec on mid-sized residential furnaces and air handlers, and one of the higher-volume filter sizes in the U.S. residential market. Available in MERV 8 for standard households, MERV 11 for pet owners and mild allergy households, and MERV 13 for fine particulate filtration including smoke and virus-carrying aerosols. The pleated synthetic media construction gives this filter substantially more

At 19 3/4" x 35 3/4" x 3/4" actual, the 20x36x1 Aerostar fits a nominal 20x36x1 return. Long-rectangle returns in this size show up on larger residential air handlers and some commercial applications. Three MERV grades cover the standard residential range. MERV 8 for baseline household dust and pollen filtration - the standard choice without pets or specific allergy concerns. MERV 11 for pet households, smoke residue, and most common allergens. MERV 13 for fine particulate capture including bact

These 21.5x23.3125x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

The Aerostar 24x24x2 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 24x24x4 Aerostar measures 23 3/8" x 23 3/8" x 3 3/4" actual, sized for both commercial and residential applications with a 4-inch filter slot. Square 24x24 returns in this depth are common spec on commercial rooftop units and certain residential whole-house media housings. The 4-inch depth is where pleated filtration earns its position: substantially more media than a 1-inch holds, much lower pressure drop, and service life measured in months rather than weeks. MERV 8 covers baseline commerc

These 16.5x21.625x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 21.25x21.25x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 16.5x21.5x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 21x21x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 21.25x23.25x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

The 24x30x1 Aerostar fits a nominal 24x30x1 return at 23 7/8" x 29 7/8" x 3/4" actual. Larger-residential and small-commercial returns in this size show up on furnaces serving 2,500-plus square foot homes and on some compact commercial air handlers. MERV 8 covers baseline residential filtration: dust, lint, pollen. MERV 11 captures pet dander, smoke residue, and most common household allergens. MERV 13 handles fine particulates including bacteria, virus carriers, and wildfire smoke - the grade t

A 16x20x4 fits a deep return cabinet - usually a media filter housing like an Aprilaire, Honeywell, or similar whole-house setup. This Aerostar measures 15 1/2" x 19 1/2" x 3 3/4" actual, sized for both commercial and residential applications. The 4-inch depth is where 1-inch filters can't compete: substantially more pleated media, much lower pressure drop, and a service life measured in months rather than weeks. Three MERV grades cover the typical range. MERV 8 for baseline household and light

The Aerostar 10x24x1 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 16x21x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

The Aerostar 18x24x1 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 20x25x2 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.