18 x 20 x 1 Air Filter

  • MERV 6

    Fiberglass
      Fights lint, dust, and pollen.
      18 x 20 x 1 MERV 6 Fiberglass Air Filter product photo
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      • Actual Size: 17 1/2" x 19 1/2" x 3/4"
      • Product: D50S.011820
    • MERV 8

      Pleated
        Fights lint, dust mites, mold spores, pollen, pet dander, and dust.
        18 x 20 x 1 MERV 8 Pleated Air Filter product photo
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        • Actual Size: 17 1/2" x 19 1/2" x 3/4"
        • Product: P80S.011820
      • MERV 11

        Pleated
          Fights lint, dust mites, mold spores, pollen, pet dander, dust, and smoke.
          18 x 20 x 1 MERV 11 Pleated Air Filter product photo
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          • Actual Size: 17 1/2" x 19 1/2" x 3/4"
          • Product: P15S.011820
        • MERV 13

          Pleated
            Fights lint, dust mites, mold spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria.
            18 x 20 x 1 MERV 13 Pleated Air Filter product photo
            View Terms and Conditions
            • Actual Size: 17 1/2" x 19 1/2" x 3/4"
            • Product: P25S.011820

          Your 18x20x1 air filters are in desperate need of attention. Rather than settling for low- quality aftermarket filters or overspending on popular brands in the market, opt for both high- level performance and affordability with Factory Direct Filters. With in-house manufacturing in the USA, we are able to cut costs of international shipping and outsourcing. However, we would never compromise in filtration efficiency. Our 18x20x1 air filters will capture pollen, dust, and lint like any other branded offering. Increase your MERV rating for enhanced efficiency if you are prone to allergies, have a pet, or simply wish to have the cleanest air possible. And don't forget – free shipping is available for every order!