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18x18x1 Air Filter

Our 18x18x1 air filters not only improve your air quality but will change your perspective on air filter replacement as well. At Air Filters Delivered, we understand that it can be a pain to swap out your filters every month or two. To mitigate your struggles, we manufacture our own products in America, cutting out additional costs, thus providing you with unbeatable prices you won't find anywhere else. We also offer multiple MERV ratings so you can customize your air quality to best match the needs of your home or business. Further personalize your order by choosing between our 6-pack and 12-pack 18x18x1 air filter alternatives. With larger package bundles, we hope to make your life a little easier. You can replace all the filters in your office or save extra filters to use later in the year. Remember, we offer a price match guarantee and free shipping on every order.
  • Home Basic

    Fiberglass | MERV Rating 6
    Lint, Dust Mites, Mold Spores, Pollen & Pet Dander
    18 x 18 x 1 MERV 6 Fiberglass Air Filter
    Get your First Filter Free with Auto Delivery
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    • Actual Size: 17 3/4" x 17 3/4" x 3/4"
    • Product #: D50S.011818
  • Home Select

    Pleated | MERV Rating 8
    Lint, Dust Mites, Mold Spores, Pollen, Pet Dander & Fine Dust
    18 x 18 x 1 MERV 8 Pleated Air Filter
    Get your First Filter Free with Auto Delivery
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    • Actual Size: 17 7/8" x 17 7/8" x 3/4"
    • Product #: P80S.011818
  • Home Plus

    Pleated | MERV Rating 11
    Lint, Dust Mites, Mold Spores, Pollen, Pet Dander, Fine Dust & Auto Emissions
    18 x 18 x 1 MERV 11 Pleated Air Filter
    Get your First Filter Free with Auto Delivery
    View Terms and Conditions
    • Actual Size: 17 3/4" x 17 3/4" x 3/4"
    • Product #: P15S.011818
  • Home Ultimate

    Pleated | MERV Rating 13
    Lint, Dust Mites, Mold Spores, Pollen, Pet Dander, Fine Dust, Auto Emissions, Very Fine Dust, Smoke & Bacteria
    18 x 18 x 1 MERV 13 Pleated Air Filter
    Get your First Filter Free with Auto Delivery
    View Terms and Conditions
    • Actual Size: 17 3/4" x 17 3/4" x 3/4"
    • Product #: P25S.011818
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