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.

3M Filtrete 1550 Allergen Reduction Air Filters - 20x20x4

Price $55.99 List Price Price $79.99 Save 30%
1 Pack Selected

1 Pack - $55.99
($55.99 per filter)

4 Pack - $195.96
($48.99 per filter)
3M Filtrete 1550 Allergen Reduction Air Filters - 20x25x4

Price $61.99 List Price Price $88.99 Save 30%
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1 Pack Selected

1 Pack - $61.99
($61.99 per filter)

4 Pack - $199.96
($49.99 per filter)
3M Filtrete 600 Dust & Pollen Reduction Air Filter - 16x20x1

Price $29.99 List Price Price $42.99 Save 30%
1 Pack Selected

1 Pack - $29.99
($29.99 per filter)

4 Pack - $67.96
($16.99 per filter)
3M Filtrete 600 Dust & Pollen Reduction Air Filter - 16x25x1

Price $35.99 List Price Price $50.99 Save 29%
1 Pack Selected

1 Pack - $35.99
($35.99 per filter)

4 Pack - $67.96
($16.99 per filter)
3M Filtrete 2200 Elite Allergen & Home Pollutants Air Filter - 16x25x1

Price $54.99 List Price Price $78.99 Save 30%
1 Pack Selected

1 Pack - $54.99
($54.99 per filter)

4 Pack - $147.96
($36.99 per filter)
3M Filtrete 2200 Elite Allergen & Home Pollutants Air Filter - 20x20x1

Price $48.99 List Price Price $69.99 Save 30%
1 Pack Selected

1 Pack - $48.99
($48.99 per filter)

4 Pack - $147.96
($36.99 per filter)
3M Filtrete 2200 Elite Allergen & Home Pollutants Air Filter - 20x25x1

Price $52.99 List Price Price $75.99 Save 30%
1 Pack Selected

1 Pack - $52.99
($52.99 per filter)

4 Pack - $147.96
($36.99 per filter)
3M Filtrete 2200 Elite Allergen & Home Pollutants Air Filter - 20x30x1

Price $50.99 List Price Price $72.99 Save 30%
1 Pack Selected

1 Pack - $50.99
($50.99 per filter)

4 Pack - $147.96
($36.99 per filter)
3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 12x30x1

Price $45.99 List Price Price $65.99 Save 30%
1 Pack Selected

1 Pack - $45.99
($45.99 per filter)

4 Pack - $95.96
($23.99 per filter)
3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 14x24x1

Price $34.99 List Price Price $49.99 Save 30%
1 Pack Selected

1 Pack - $34.99
($34.99 per filter)

4 Pack - $91.96
($22.99 per filter)
3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 14x25x1

Price $35.99 List Price Price $50.99 Save 29%
1 Pack Selected

1 Pack - $35.99
($35.99 per filter)

4 Pack - $91.96
($22.99 per filter)
3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 14x30x1

Price $37.99 List Price Price $53.99 Save 29%
1 Pack Selected

1 Pack - $37.99
($37.99 per filter)

4 Pack - $91.96
($22.99 per filter)