Air Filters by Size

Whether you want to reduce pollen and pet dander or dust mites and bacteria, find the air filter right for your home. By trapping and removing unwanted air contaminants, you and your family can breathe easy. A clean air filter not only supports healthy living, but it reduces your home's energy cost.

Select the filter size needed for your furnace or air conditioner. If you're not sure what size filter you need, remove the existing filter and look on top of it. Its dimensions should be listed, and it's important to replace it with the exact same size filter.

989 Products found

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  1. Aprilaire 401 Comparable Replacement Air Filter by Tier1 (2-Pack)

    Price $55.99 List Price Price $79.99 Save 30%
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  2. Aprilaire 201 Comparable Replacement Air Filter by Tier1 (2-Pack)

    Price $51.99 List Price Price $73.99 Save 29%
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  3. Aprilaire Air Purifier Replacement Filter 413 by Tier1 (2-Pack)

    Price $77.99 List Price Price $110.99 Save 29%
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  4. Aprilaire 410 Air Purifier Replacement Filter by Tier1 (2-Pack)

    Price $77.99 List Price Price $110.99 Save 29%
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  5. Aprilaire 213 Air Purifier Replacement Filter by Tier1 (2-Pack)

    Price $77.99 List Price Price $110.99 Save 29%
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  6. Aprilaire 210 Air Purifier Replacement Filter by Tier1 (2-Pack)

    Price $75.99 List Price Price $108.99 Save 30%
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  7. 3M Filtrete 600 Dust & Pollen Air Filter (16x24x1)

    Price $69.99 List Price Price $91.99 Save 23%
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  8. 30x36x4 Filtrete 600 Dust Reduction Clean Living Comparable Filter by Tier1 (6-Pack)

    Price $321.99 List Price Price $459.99 Save 30%
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  9. 30x30x4 Filtrete 600 Dust Reduction Clean Living Comparable Filter by Tier1 (6-Pack)

    Price $247.99 List Price Price $353.99 Save 29%
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  10. 25x25x4 Filtrete 600 Dust Reduction Clean Living Comparable Filter by Tier1 (6-Pack)

    Price $172.99 List Price Price $247.99 Save 30%
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  11. 24x36x4 Filtrete 600 Dust Reduction Clean Living Comparable Filter by Tier1 (6-Pack)

    Price $296.99 List Price Price $423.99 Save 29%
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  12. 24x30x4 Filtrete 600 Dust Reduction Clean Living Comparable Filter by Tier1 (6-Pack)

    Price $203.99 List Price Price $290.99 Save 29%
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