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    Lennox Compatible Air Filter Replacements

    Filterbuy replacement air filters offer the same high quality materials and performance as the name brand but at a fraction of the cost.

    CUSTOMER REVIEW

    5star

    Absolutely the best and most efficient way to purchase furnace filters! No problem finding the filter I needed, filters delivered within a couple of days, fit perfectly and shipping is FREE! What's not to like?

    Christine P.

    filter 16x25x3 - MERV 11
    16x25x3 - MERV 11
    Actual: 15 3/4 x 24 1/4 x 3"
    Designed to Fit:
    X0581 X5427

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $29.49 ea

    as low as $ 26.49 when you buy 2 or more

    filter 16x20x5 - MERV 11
    16x20x5 - MERV 11
    Actual: 16 x 20 x 4 1/4"
    Designed to Fit:
    X0582

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $70.99 ea

    as low as $ 44.36 when you buy 2 or more

    filter 16x25x5 - MERV 11
    16x25x5 - MERV 11
    Actual: 15.75 x 24.75 x 4.38"
    Designed to Fit:
    X0583 X6670 HCF16-10

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $55.94 ea

    as low as $ 33.98 when you buy 2 or more

    filter 17x26x4 - MERV 11
    17x26x4 - MERV 11
    Actual: 16 1/2 x 26 x 4 1/8"
    Designed to Fit:
    75x74 x6664 x6666

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $67.28 ea

    as low as $ 42.05 when you buy 2 or more

    filter 16x28x6 - MERV 11
    16x28x6 - MERV 11
    Actual: 15.28 x 26 15/16 x 6"
    Designed to Fit:
    X1444 X4559 X5425

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $59.77 ea

    as low as $ 43.24 when you buy 2 or more

    filter 20x20x5 - MERV 11
    20x20x5 - MERV 11
    Actual: 19 3/4 x 19 7/8 x 4 3/8"
    Designed to Fit:
    X0585 X8305 X8308

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $33.49 ea

    as low as $ 30.49 when you buy 2 or more

    filter 20x21x5 - MERV 11
    20x21x5 - MERV 11
    Actual: 20 x 20 6/3 x 4 3/8"
    Designed to Fit:
    X8790

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $68.90 ea

    as low as $ 43.08 when you buy 2 or more

    filter 20x25x5 - MERV 11
    20x25x5 - MERV 11
    Actual: 19.88 x 24.75 x 4.38"
    Designed to Fit:
    X0586 X6673 X5426

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $46.77 ea

    as low as $ 28.51 when you buy 2 or more

    filter 20x25x6 - MERV 11
    20x25x6 - MERV 11
    Actual: 19 3/4 x 24 1/2 x 6 3/8"
    Designed to Fit:
    X0445 X4560 X5424

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $66.95 ea

    as low as $ 41.04 when you buy 2 or more

    filter 20x26x3 - MERV 11
    20x26x3 - MERV 11
    Actual: 20 1/8 x 26 x 3"
    Designed to Fit:
    x1184

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $32.49 ea

    as low as $ 29.49 when you buy 2 or more

    filter 20x26x5 - MERV 11
    20x26x5 - MERV 11
    Actual: 20x25.88x4.88"
    Designed to Fit:
    X0587 X5428

    MERV 11 - filters pollen, dust mites, mold, auto emissions, and large particles like milled flour

    $33.49 ea

    as low as $ 30.49 when you buy 2 or more