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Furnace Filters

Breathe easy for less with air filters from Tier1 from DiscountFilterStore.com. Tier1 is serious about healthy indoor air and is committed to ensuring that every Tier1 air filter is the highest quality aftermarket filter available. Tier1 air filters are replacement models for top brands like Filtrete, Honeywell, and Lennox but cost a fraction of the price. Made with strict quality standards, every Tier1 filter is thoroughly inspected and rigorously tested to ensure you the best possible product. Guaranteed to fit correctly and perform like the brand names, Tier1 air filters ensure clean air at a great value. Free shipping available for orders over $39.
DFS Category Spec Banner - Furnace Filters

58 Products found

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  1. Aprilaire 210 Air Purifier Replacement Filter

    Aprilaire 210 Air Purifier Replacement Filter

    Price $55.99 List Price Price $79.99 Save 30%
    Free Shipping
  2. Aprilaire 510 Air Purifier Replacement Filter

    Aprilaire 510 Air Purifier Replacement Filter

    Price $72.99 List Price Price $104.99 Save 30%
    Free Shipping
  3. Aprilaire 513 Air Purifier Replacement Filter

    Aprilaire 513 Air Purifier Replacement Filter

    Price $88.99 List Price Price $127.99 Save 30%
    Free Shipping
  4. 3M Filtrete 600 Dust & Pollen Air Filter (16x24x1)

    3M Filtrete 600 Dust & Pollen Air Filter (16x24x1) - 6 Pack

    Price $129.54 List Price Price $203.94 Save 36%
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  5. 3M Filtrete 600 Dust & Pollen Air Filter (16x16x1)

    3M Filtrete 600 Dust & Pollen Air Filter (16x16x1) - 6 Pack

    Price $124.14 List Price Price $197.94 Save 37%
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  6. FAPF03-6 Filtrete Ultra Clean Air Purifier Replacement Filter (6-Pack)

    FAPF03-6 Filtrete Ultra Clean Air Purifier Replacement Filter (6-Pack)

    Price $188.94 List Price Price $299.94 Save 37%
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  7. Filtrete 2200 Elite Allergen Filter - 20x20x1 (6-Pack)

    Filtrete 2200 Elite Allergen Healthy Living Filter - 20x20x1 (6-Pack)

    Price $169.99 List Price Price $179.99 Save 5%
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  8. DPFS20X25X6M13DWR Tier1 Replacement Air Filter - 20X25X6 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR2000-401 - 20 x 25 x 6 - MERV 13 (2-Pack)

    Price $77.99 List Price Price $110.99 Save 29%
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  9. DPFS20X25X6M13DLX Tier1 Replacement Air Filter - 20X25X6 (2-Pack)

    Tier1 brand replacement for Lennox X0445 - 20 x 25 x 6 - MERV 13 (2-Pack)

    Price $77.99 List Price Price $110.99 Save 29%
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  10. Tier1 brand replacement for Aprilaire #201 - 20 x 25 x 6 - MERV 13 (2-Pack)

    Tier1 brand replacement for Aprilaire #201 - 20 x 25 x 6 - MERV 13 (2-Pack)

    Price $77.99 List Price Price $110.99 Save 29%
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  11. DPFS20X25X6M11DWR Tier1 Replacement Air Filter - 20X25X6 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR2000-401 - 20 x 25 x 6 - MERV 11 (2-Pack)

    Price $62.99 List Price Price $89.99 Save 30%
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  12. DPFS20X25X6M11DLX Tier1 Replacement Air Filter - 20X25X6 (2-Pack)

    Tier1 brand replacement for Lennox X0445 - 20 x 25 x 6 - MERV 11 (2-Pack)

    Price $62.99 List Price Price $89.99 Save 30%
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58 Products found

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