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20x24x4 Air Filter

Make replacing your 20x24x4 air filters a breeze with bulk purchasing options in 6-pack and 12-pack bundles. The more you buy, the more you save! Choose from three MERV rating options depending on the kind of filtration your home or office space needs. Our filters are made in the USA and work great in both AC vents and furnaces. Every order qualifies for free shipping and our price match guarantee.
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    Pleated | MERV Rating 8
    20 x 24 x 4 Basic MERV 8 Pleated Air Filter
    Get your First Filter Free with Auto Delivery
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    • Actual Size: 19 3/8" x 23 3/8" x 3 3/4"
    • Product #: P80S.042024
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    Pleated | MERV Rating 11
    20 x 24 x 4 MERV 11 Pleated Air Filter
    Get your First Filter Free with Auto Delivery
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    • Actual Size: 19 3/8" x 23 3/8" x 3 3/4"
    • Product #: P15S.042024
  • Home Ultimate

    Pleated | MERV Rating 13
    20 x 24 x 4 MERV 13 Pleated Air Filter
    Get your First Filter Free with Auto Delivery
    View Terms and Conditions
    • Actual Size: 19 3/8" x 23 3/8" x 3 3/4"
    • Product #: P25S.042024
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