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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

103 Products found

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  1. FILTRETE-ALLERGEN-20x25x4
    FILTRETE-ALLERGEN-20x25x4

    3M Filtrete 1550 Allergen Reduction Air Filters - 20x25x4

    Price $61.99 List Price Price $88.99 Save 30%
    Free Shipping
    1 Pack Selected
  2. FILTRETE-ELITE-BLACK-14x20x1
    FILTRETE-ELITE-BLACK-14x20x1

    3M Filtrete 2200 Elite Allergen & Home Pollutants Air Filter - 14x20x1

    Price $45.99 List Price Price $65.99 Save 30%
    1 Pack Selected
  3. FILTRETE-ELITE-BLACK-20x30x1
    FILTRETE-ELITE-BLACK-20x30x1

    3M Filtrete 2200 Elite Allergen & Home Pollutants Air Filter - 20x30x1

    Price $51.99 List Price Price $73.99 Save 29%
    1 Pack Selected
  4. FILTRETE-MICRO-14x24x1
    FILTRETE-MICRO-14x24x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 14x24x1

    Price $34.99 List Price Price $49.99 Save 30%
    1 Pack Selected
  5. FILTRETE-MICRO-14x30x1
    FILTRETE-MICRO-14x30x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 14x30x1

    Price $39.99 List Price Price $56.99 Save 29%
    1 Pack Selected
  6. FILTRETE-MICRO-15x20x1
    FILTRETE-MICRO-15x20x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 15x20x1

    Price $28.99 List Price Price $40.99 Save 29%
    1 Pack Selected
  7. FILTRETE-MICRO-16x16x1
    FILTRETE-MICRO-16x16x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 16x16x1

    Price $36.99 List Price Price $52.99 Save 30%
    1 Pack Selected
  8. FILTRETE-MICRO-16x25x1
    FILTRETE-MICRO-16x25x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 16x25x1

    Price $39.99 List Price Price $56.99 Save 29%
    1 Pack Selected
  9. FILTRETE-MICRO-17-5x23-5x1
    FILTRETE-MICRO-17-5x23-5x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 17.5x23.5x1

    Price $43.99 List Price Price $62.99 Save 30%
    1 Pack Selected
  10. FILTRETE-MICRO-20x20x1
    FILTRETE-MICRO-20x20x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 20x20x1

    Price $36.99 List Price Price $52.99 Save 30%
    1 Pack Selected
  11. FILTRETE-MICRO-20x24x1
    FILTRETE-MICRO-20x24x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 20x24x1

    Price $34.99 List Price Price $49.99 Save 30%
    1 Pack Selected
  12. FILTRETE-MICRO-20x30x1
    FILTRETE-MICRO-20x30x1

    3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 20x30x1

    Price $38.99 List Price Price $55.99 Save 30%
    1 Pack Selected

103 Products found

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