Lennox Air Filter Replacements

FilterBuy manufactures a full selection of aftermarket replacement filters designed to replace Lennox furnace air filters. Our deep pleats are designed to offer maximum surface area to ensure long lasting filtration at optimal performance. Every Lennox replacement filter we produce comes in MERV 8 (AFB Silver), MERV 11 (AFB Gold), and MERV 13 (AFB Platinum), which means that you have control over the level of filtration you prefer. Need a standard 1", 2", or 4" filter for your Lennox unit? No problem simply  shop by filter size.

16x25x3

Actual: 15 3/4 x 24 1/4 x 3"

Designed to Fit:
X0581 X5427

Prices From as low as
$21.99

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16x20x5

Actual: 16 x 20 x 4 1/4"

Designed to Fit:
X0582

Prices From as low as
$19.99

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16x25x5

Actual: 15 3/4 x 24 3/4 x 4 1/4"

Designed to Fit:
X0583 X6670 HCF16-10

Prices From as low as
$17.99

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16x26x3

Actual: 15 3/4 x 26 1/8 x 3"

Designed to Fit:
x1180

Prices From as low as
$23.99

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17x26x4

Actual: 16 1/2 x 26 x 4 1/8"

Designed to Fit:
75x74 x6664 x6666

Prices From as low as
$23.99

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16x28x6

Actual: 15.28 x 26 15/16 x 6"

Designed to Fit:
X1444 X4559 X5425

Prices From as low as
$22.99

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20x20x5

Actual: 19 3/4 x 19 7/8 x 4 3/8"

Designed to Fit:
X0585 X8305 X8308

Prices From as low as
$22.99

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20x21x5

Actual: 20 x 20 6/3 x 4 3/8"

Designed to Fit:
X8790

Prices From as low as
$23.99

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20x25x5

Actual: 19 5/8 x 24 3/8 x 4 3/4"

Designed to Fit:
X0586 X6673 X5426

Prices From as low as
$17.99

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20x25x6

Actual: 19 3/4 x 24 1/2 x 6 3/8"

Designed to Fit:
X0445 X4560 X5424

Prices From as low as
$22.99

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20x26x3

Actual: 20 1/8 x 26 x 3"

Designed to Fit:
x1184

Prices From as low as
$23.99

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20x26x5

Actual: 20 x 25 7/8 x 4 7/8"

Designed to Fit:
X0587 X5428

Prices From as low as
$23.99

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