Air Conditioner Return Filter

Bestseller No. 1
NaturalAire SM1006 Cut-to-Fit Synthetic Air Filter, MERV 4, 20 x 30 x 1-Inch, 6-Pack, Color may vary
  • Pack of 6 reusable air filters made of synthetic fibers
  • MERV 4 rating: Removes household dust, pollen, and lint
  • Air filter can be cut to size using heavy shear or a razor knife
  • Filter maintains efficiency for up to 1 year
  • Ideal replacement for hard to find specialty filters measuring 20" x 30" or smaller
Bestseller No. 2
Filtrete 20x25x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack (exact dimensions 19.69 x 24.69 x 0.81)
  • Outperforms fiberglass, washable and non electrostatic 3 month pleated 1 inches air filters for your furnace, air conditioner, or HVAC system
  • Exclusive Filtrate Brand 3 in 1 technology from 3M traps unwanted air particles, while letting cleaner air flow through
  • Attracts and captures large particles such as lint, household dust, dust mite debris and mold spores
  • Filtrate 300 MPR (Micro particle Performance Rating) equates to MERV 5
  • For optimum performance, change your home air filter every 90 days or sooner
Bestseller No. 3
FilterBuy 20x30x1, Pleated HVAC AC Furnace Air Filter, MERV 8, AFB Silver, 4-Pack
  • 20x30x1 (Actual size: 19.5" x 29.5" x 0.75") MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen).
  • MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components.
  • TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality!
  • LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use.
  • HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.
SaleBestseller No. 4
MervFilters 12x12x1 Air Filter, MERV 8, MPR 600, AC Furnace Air Filter, 6 Pack
  • UNIVERSALLY COMPATIBLE: This air conditioner, furnace and HVAC filter works with almost any brand. It is comparable to the 3M Filtrete MPR 300 Clean Living, MPR 600 Dust & Pollen and the Honeywell FPR 5 models.
  • CREATE A CLEANER ENVIRONMENT: Entrap airborne particles that bring harm to you and your loved ones with our Merv 8 pleated air filters that capture dust, lint and pollen. Actual size is: 11 ½"-¾” x 11 ½"-¾” x ¾”
  • PREMIUM CONSTRUCTION: Made in USA with 100% American components to ensure top quality performance. Electrostatically charged synthetic fibers attract large particles without absorbing moisture.
  • ADVANCED PLEATED TECHNOLOGY: Pleated filters deliver multiple benefits – greater surface area means more air coverage, thicker for great capture capacity, and extended life for your AC or furnace.
  • LONG LASTING USAGE: Each filter has a lifespan of over 3 months of resilient filtration. They are very easy to replace and can be changed more often for homes with children or those who suffer from allergies.
Bestseller No. 5
Aerostar Allergen & Pet Dander 18x20x1 MERV 11 Pleated Air Filter, Made in the USA, 6-Pack
  • CHECK YOUR FIT - Nominal size: 18x20x1; Actual size 17 3/4"x 19 3/4" x 3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7.
  • SUPERIOR FILTRATION EFFICIENCY - Aerostar filters are made with electrostatically charged synthetic material that draws and captures allergens including lint, dust mites, mold spores, pollen, pet dander, and dust.
  • IMPROVE INDOOR AIR QUALITY - Protect your family and loved ones with clean indoor air quality at home. Aerostar filters are a simple to install and cost-effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms.
  • HIGH PERFORMING - 100% synthetic electrostatic media for high efficiency with low air flow resistance. For best results, change your filters every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.
  • MADE IN THE USA - Aerostar filters are manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions for residential, commercial and industrial applications.
Bestseller No. 6
Trophy Air 20x30x1 HVAC Furnace Air Filter Lasts a Lifetime, Washable, 6 Stage Micro Allergen Defense, Healthier Home or Office, Made in The USA 20x30x1
  • Enhanced HVAC Effectiveness – Crafted to help improve your home’s ventilation efficiency, proper air flow can help reduce air flow resistance for less HVAC stress.
  • Cleaner, Healthier Air – These air conditioner filters help purify the air of dust, pollen and allergens, which can help reduce allergy sufferers itchy eyes and sneezing.
  • Premium Craftsmanship – Each HVAC air filter is crafted with four layers of high-grade aluminum and two layers of electrostatic media for superior reliability.
  • Quick & Easy Installation – Each electrostatic air purifier slides into your HVAC system effortlessly in seconds, making it simple to change out your old filters.
  • American Made – Smith Filter electrostatic air conditioner filters are crafted right here in the United States, so you can trust their durability and long-lasting quality.
Bestseller No. 7
Filtrete 20x30x1, AC Furnace Air Filter, MPR 1500, Healthy Living Ultra Allergen, 2-Pack (exact dimensions 19.81 x 29.81 x 0.78)
  • Helps promote a healthy home by reducing airborne dust, allergens, bacteria & viruses
  • 4x better small bacteria and virus capture {Refers to bacteria and viruses that are less than 1 micron in size}
  • Electrostatically charged to attract and capture microscopic airborne particles
  • Carries a 1500 Microparticle Performance Rating (MPR)
  • Lasts up to 3 months
Bestseller No. 8
Aerostar Home Max 12x12x1 MERV 13 Pleated Air Filter Made in the USA Captures Virus Particles, Actual Size 11 3/4"x11 3/4"x3/4" 6 Pack
  • CHECK YOUR FIT - Nominal size: 12x12x1; Actual size: 11 3/4"x11 3/4"x3/4"; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10.
  • SUPERIOR FILTRATION EFFICIENCY - Aerostar filters are made with electrostatically charged synthetic material that draws and captures allergens including lint, dust mites, mold spores, pollen, pet dander, and dust.
  • IMPROVE INDOOR AIR QUALITY - Protect your family and loved ones with clean indoor air quality at home. Aerostar filters are a simple to install and cost-effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms.
  • HIGH PERFORMING - 100% synthetic electrostatic media for high efficiency with low air flow resistance. For best results, change your filters every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.
  • MADE IN THE USA - Aerostar filters are manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions for residential, commercial and industrial applications.
Bestseller No. 9
FilterBuy 18x18x1 MERV 8 Pleated AC Furnace Air Filter, (Pack of 2 Filters), 18x18x1 – Silver
  • 18x18x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen).
  • MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components.
  • TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality!
  • LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use.
  • HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.
Bestseller No. 10
Nordic Pure 18x24x1 MERV 12 Pleated AC Furnace Air Filters 6 Pack
  • Nominal Size: 18 x 24 x 1, Actual Size: 17 1/2 x 23 1/2 x 3/4 (17.5 x 23.5 x 0.75)
  • Attracts indoor allergens, dust, pollen and other airborne contaminants.
  • Hypoallergenic and antimicrobial pleated electrostatic filter material
  • Nordic Pure recommends changing 1” air filters every 30-90 days
  • Made in the USA

Compare The Top 10 Air Conditioner Return Filter

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