Deep-discount warehouse clearance on HVAC filters. Overstock, end-of-run SKUs, slightly-imperfect packaging, and quantities we need to move. Every warehouse-deal filter ships from the same warehouse as our regular stock and carries the s...

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  • 20x30x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    WAREHOUSE DEAL 20x30x1 NaturalAire Microparticle MERV 10

    Only 1 left
    $124.88
    $124.88
    Case of 12 $10.41/filter
  • WAREHOUSE DEAL 21-1/2x27-1/2x1 Exact Filters Pleated MERV 8 (12 pack)
    MERV 8Up to $63.11 off
    Exact Filters

    WAREHOUSE DEAL 21-1/2x27-1/2x1 Pleated MERV 8

    $159.88
    $159.88 $222.99
    Case of 12 $13.32/filter
  • WAREHOUSE DEAL 21-1/2x28-1/2x1 Exact Filters Pleated MERV 10 (12 pack)
    MERV 10Up to $89.23 offContact Support
    Exact Filters

    WAREHOUSE DEAL 21-1/2x28-1/2x1 Pleated MERV 10

    $145.76
    $145.76 $234.99
    Case of 12 $12.15/filter
  • WAREHOUSE DEAL 22-1/2x28x1 Exact Filters Pleated MERV 10 (12 pack)
    MERV 10Up to $87.13 off
    Exact Filters

    WAREHOUSE DEAL 22-1/2x28x1 Pleated MERV 10

    Only 1 left
    $147.86
    $147.86 $234.99
    Case of 12 $12.32/filter
  • WAREHOUSE DEAL 22x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012222 (12 Filters)
    MERV 1-4Up to $16.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 22x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $79.88
    $79.88 $95.99
    Case of 12 $6.66/filter
  • WAREHOUSE DEAL 22x25x1 Exact Filters Pleated MERV 10 (12 pack)
    MERV 10Up to $76.12 offContact Support
    Exact Filters

    WAREHOUSE DEAL 22x25x1 Pleated MERV 10

    $146.87
    $146.87 $222.99
    Case of 12 $12.24/filter
  • PerfectPleat HC M8 Filter
    Up to $29.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 24x24x1 PerfectPleat MERV 8 High Capacity

    $78.88
    $78.88 $107.99
    Case of 12 $6.57/filter
  • 24x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10Up to $28.11 off
    AAF Flanders

    WAREHOUSE DEAL 24x24x1 NaturalAire Microparticle MERV 10

    Only 1 left
    $59.88
    $59.88 $87.99
    Case of 6 $9.98/filter
  • WAREHOUSE DEAL 24x24x4 AAF Flanders VariCel II Extended Surface Mini-Pleat MERV 13 332-510-008 (4 Filters)
    MERV 13Up to $180.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 24x24x4 VariCel II Extended Surface Mini-Pleat MERV 13

    $379.88
    $379.88 $559.99
    Case of 4 $94.97/filter
  • Flanders AAF Basic Filter 25x25x2 EZ Flow II Filters 10055.022525 (12 Filters)
    MERV 1-4Up to $24.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 25x25x2 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $92.12
    $92.12 $116.23
    Case of 12 $7.68/filter
  • 29-1/2x19-1/2x1 NaturalAire Standard MERV 8 Filters (12 pack)
    Up to $162 off
    AAF Flanders

    WAREHOUSE DEAL 29-1/2x19-1/2x1 NaturalAire Standard MERV 8

    Only 1 left
    $114.99
    $114.99 $276.99
    Case of 12 $9.58/filter
  • WAREHOUSE DEAL 8x16x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.01816 (12 Filters)
    MERV 1-4Up to $20.11 off
    AAF Flanders

    WAREHOUSE DEAL 8x16x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    Only 1 left
    $64.88
    $64.88 $84.99
    Case of 12 $5.41/filter
  • 08x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13Up to $17.27 off
    AAF Flanders

    WAREHOUSE DEAL 8x24x1 NaturalAire Healthy Ultra MERV 13

    Only 1 left
    $34.99
    $34.99 $52.26
    Case of 3 $11.66/filter
  • WAREHOUSE DEAL 9-3/4x11-3/4x1 Exact Filters Pleated MERV 8 (12 pack)
    MERV 8Up to $37.11 off
    Exact Filters

    WAREHOUSE DEAL 9-3/4x11-3/4x1 Pleated MERV 8

    Only 1 left
    $149.88
    $149.88 $186.99
    Case of 12 $12.49/filter
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HVAC Filter Warehouse Deals

Deep-discount warehouse clearance on HVAC filters. Overstock, end-of-run SKUs, slightly-imperfect packaging, and quantities we need to move. Every warehouse-deal filter ships from the same warehouse as our regular stock and carries the same Filter Fit Guarantee—the only difference is the price and the fact that these aren't going to restock when they sell out.

How Warehouse Deals Work

  • Limited quantities — once a size is gone, we typically don't reorder at this price
  • Same filters, same quality — full product line, no seconds or damaged goods
  • Free shipping still applies on orders over $50
  • No subscription on deeply discounted SKUs — these are one-time purchases only

Check back periodically—the collection rotates as we close out old SKUs and bring in new inventory.