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Tier1 Air Filters for Furnaces, Air Conditioners & Air Cleaners

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.
Tier1 Air Filter Selection Guide

Select your filter size

Value

Tier 1 MERV 6 Spun Filament Filter


Good

Tier 1 MERV 8 Pleated Filter




Better

Tier 1 MERV 11 Pleated Filter




Best

Tier 1 MERV 13 Pleated Filter






Microparticle Rating 500 600 1500 1900
MERV Rating 6 8 11 13
Cost (16x25x1) $5-6 $6-7 $8-9 $10-11
Life 1 months 3 months 3 months 3 months
Material Fiberglass Pleated Pleated Pleated
Dust DFS Compare Check DFS Compare Check DFS Compare Check DFS Compare Check
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Items 1 to 48 of 1572 total

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  • Tier1 1500 Air Filter - 20x20x1 (6-Pack)

    20x20x1 Merv 11 Universal Air Filter By Tier1 (6-Pack)

    $50.54
    MSRP: $144.99
    Save 65%
  • Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 8 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 8 (2-Pack)

    $35.89
    MSRP: $41.58
    Save 14%
  • Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 11 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000M-100 - 16 x 20 x 4 - MERV 11 (2-Pack)

    $37.09
    MSRP: $42.87
    Save 13%
  • DPFI16X21X5DCM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 21 x 5 - MERV 8 (2-Pack)

    $54.87
    MSRP: $65.40
    Save 16%
  • DPFI16X21X5DEA Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 21 x 5 - MERV 8 (2-Pack)

    $54.87
    MSRP: $65.40
    Save 16%
  • DPFI16X21X5DEM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 21 x 5 - MERV 8 (2-Pack)

    $54.87
    MSRP: $65.40
    Save 16%
  • DPFI16X21X5M11 Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000-100 - 16 x 21 x 5 - MERV 11 (2-Pack)

    $60.47
    MSRP: $71.84
    Save 16%
  • DPFI16X21X5M11DCM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 21 x 5 - MERV 11 (2-Pack)

    $60.47
    MSRP: $71.84
    Save 16%
  • DPFI16X21X5M11DEA Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 21 x 5 - MERV 11 (2-Pack)

    $60.47
    MSRP: $71.84
    Save 16%
  • DPFI16X21X5M11DEM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 21 x 5 - MERV 11 (2-Pack)

    $63.49
    MSRP: $71.84
    Save 12%
  • DPFI16X21X5M13 Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000-100 - 16 x 21 x 5 - MERV 13 (2-Pack)

    $70.55
    MSRP: $83.43
    Save 15%
  • DPFI16X21X5M13DCM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 21 x 5 - MERV 13 (2-Pack)

    $70.55
    MSRP: $83.43
    Save 15%
  • DPFI16X21X5M13DEA Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 21 x 5 - MERV 13 (2-Pack)

    $70.55
    MSRP: $83.43
    Save 15%
  • DPFI16X21X5M13DEM Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 21 x 5 - MERV 13 (2-Pack)

    $70.55
    MSRP: $83.43
    Save 15%
  • DPFI16X21X5OB Tier1 Replacement Air Filter - 16X21X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1000-100 - 16 x 21 x 5 - Carbon Filter Upgrade (2-Pack)

  • Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 8 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 8 (2-Pack)

    $39.99
    MSRP: $46.08
    Save 13%
  • Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 11 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 11 (2-Pack)

    $42.39
    MSRP: $48.66
    Save 13%
  • Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 13 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1400M-100 - 16 x 25 x 4 - MERV 13 (2-Pack)

    $42.39
    MSRP: $47.99
    Save 12%
  • DPFI16X26X5DEA Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 26 x 5 - MERV 8 (2-Pack)

    $52.64
    MSRP: $62.84
    Save 16%
  • DPFI16X26X5DEM Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 26 x 5 - MERV 8 (2-Pack)

    $52.64
    MSRP: $62.84
    Save 16%
  • DPFI16X26X5DLX Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Lennox X0584 - 16 x 26 x 5 - MERV 8 (2-Pack)

    $56.49
    MSRP: $64.08
    Save 12%
  • DPFI16X26X5M11 Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers F825-0548 & FR1400-100 - 16 x 26 x 5 - MERV 11 (2-Pack)

    $53.72
    MSRP: $64.08
    Save 16%
  • DPFI16X26X5M11DCM Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 26 x 5 - MERV 11 (2-Pack)

    $56.49
    MSRP: $64.08
    Save 12%
  • DPFI16X26X5M11DEA Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 26 x 5 - MERV 11 (2-Pack)

    $56.49
    MSRP: $64.08
    Save 12%
  • DPFI16X26X5M11DEM Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 26 x 5 - MERV 11 (2-Pack)

    $56.49
    MSRP: $64.08
    Save 12%
  • DPFI16X26X5M11DLX Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Lennox X0584 - 16 x 26 x 5 - MERV 11 (2-Pack)

    $65.89
    MSRP: $74.38
    Save 11%
  • DPFI16X26X5M13 Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for White-Rodgers F825-0548 & FR1400-100 - 16 x 26 x 5 - MERV 13 (2-Pack)

    $68.19
    MSRP: $76.96
    Save 11%
  • DPFI16X26X5M13DCM Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Comfort Plus - 16 x 26 x 5 - MERV 13 (2-Pack)

    $64.92
    MSRP: $76.96
    Save 16%
  • DPFI16X26X5M13DEA Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Electro Air - 16 x 26 x 5 - MERV 13 (2-Pack)

    $64.92
    MSRP: $76.96
    Save 16%
  • DPFI16X26X5M13DEM Tier1 Replacement Air Filter - 16X26X5 (2-Pack)

    Tier1 brand replacement for Emerson - 16 x 26 x 5 - MERV 13 (2-Pack)

    $64.92
    MSRP: $76.96
    Save 16%
  • Tier1 brand replacement for White-Rodgers FR1600M-100 - 20 x 20 x 4 - MERV 8 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1600M-100 - 20 x 20 x 4 - MERV 8 (2-Pack)

    $35.83
    MSRP: $43.50
    Save 18%
  • Tier1 brand replacement for White-Rodgers FR1600M-100 - 20 x 20 x 4 - MERV 11 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1600M-100 - 20 x 20 x 4 - MERV 11 (2-Pack)

    $39.99
    MSRP: $46.08
    Save 13%
  • Tier1 brand replacement for White-Rodgers FR1600M-100 - 20 x 20 x 4 - MERV 13 (2-Pack)

    Tier1 brand replacement for White-Rodgers FR1600M-100 - 20 x 20 x 4 - MERV 13 (2-Pack)

    $42.39
    MSRP: $48.67
    Save 13%

Items 1 to 48 of 1572 total

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