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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  • WAREHOUSE DEAL 15-3/4x25-3/4x1 Exact Filters Pleated MERV 10 (12 pack)
    MERV 10Up to $72.43 off
    Exact Filters

    WAREHOUSE DEAL 15-3/4x25-3/4x1 Pleated MERV 10

    Only 1 left
    $132.56
    $132.56 $204.99
    Case of 12 $11.05/filter
  • WAREHOUSE DEAL 15-3/4x26-3/4x1 Exact Filters Pleated MERV 10 (12 pack)
    MERV 10Up to $87.11 off
    Exact Filters

    WAREHOUSE DEAL 15-3/4x26-3/4x1 Pleated MERV 10

    Only 1 left
    $117.88
    $117.88 $204.99
    Case of 12 $9.82/filter
  • 15x20x1 PREpleat MERV 11 Standard Capacity 85655.011520M11 (12 Filters)
    Up to $40.11 off
    AAF Flanders

    WAREHOUSE DEAL 15x20x1 PREpleat M11 MERV 11 Standard Capacity

    Only 1 left
    $129.88
    $129.88 $169.99
    Case of 12 $10.82/filter
  • WAREHOUSE DEAL 15x20x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter (12 Filters)
    MERV 1-4Up to $11.99 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 15x20x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $50.00
    $50.00 $61.99
    Case of 12 $4.17/filter
  • 15x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    Up to $10.39 off
    AAF Flanders

    WAREHOUSE DEAL 15x20x1 NaturalAire Healthy Ultra MERV 13

    Only 1 left
    $149.99
    $149.99 $160.38
    Case of 11 $13.64/filter
  • WAREHOUSE DEAL 16x18x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter (12 Filters)
    MERV 1-4Up to $14 off
    AAF Flanders

    WAREHOUSE DEAL 16x18x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $51.99
    $51.99 $65.99
    Case of 12 $4.33/filter
  • PerfectPleat HC M8 Filter
    Up to $16.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 16x20x1 PerfectPleat MERV 8 High Capacity

    $76.88
    $76.88 $92.99
    Case of 12 $6.41/filter
  • Flanders AAF Basic Filter 16x20x1 EZ Flow II Filters 10055.011620 (12 Filters)
    MERV 1-4Up to $19.11 off
    AAF Flanders

    WAREHOUSE DEAL 16x20x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    Only 1 left
    $40.88
    $40.88 $59.99
    Case of 12 $3.41/filter
  • 16x20x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10Up to $41.11 off
    AAF Flanders

    WAREHOUSE DEAL 16x20x1 NaturalAire Microparticle MERV 10

    Only 1 left
    $98.88
    $98.88 $139.99
    Case of 12 $8.24/filter
  • WAREHOUSE DEAL 16x20x1 NaturalAire Standard MERV 8 84858.011620 (12 Filters)
    MERV 8Up to $17 off
    AAF Flanders

    WAREHOUSE DEAL 16x20x1 NaturalAire Standard MERV 8

    Only 1 left
    $79.99
    $79.99 $96.99
    Case of 12 $6.67/filter
  • WAREHOUSE DEAL 16x20x5 NaturalAire Choice Allergen MERV 8 (2 Filters)
    MERV 8Up to $55.11 off
    AAF Flanders

    WAREHOUSE DEAL 16x20x5 NaturalAire Choice Allergen MERV 8

    Only 1 left
    $149.88
    $149.88 $204.99
    Case of 2 $74.94/filter
  • WAREHOUSE DEAL 16x24x2 Koch Multi-Pleat XL10 MERV 10 (6 Filters)
    MERV 10Up to $16.11 off
    Koch

    WAREHOUSE DEAL 16x24x2 Multi-Pleat XL10 MERV 10

    Only 2 left
    $104.88
    $104.88 $120.99
    Case of 6 $17.48/filter
  • 17x21x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8Up to $49.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 17x21x1 NaturalAire Standard MERV 8

    $104.88
    $104.88 $153.99
    Case of 12 $8.74/filter
  • 18x18x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13Up to $34.13 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 18x18x1 NaturalAire Healthy Ultra MERV 13

    $129.99
    $129.99 $164.12
    Case of 11 $11.82/filter
  • 18x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13Up to $31.51 off
    AAF Flanders

    WAREHOUSE DEAL 18x24x1 NaturalAire Healthy Ultra MERV 13

    Only 1 left
    $97.99
    $97.99 $129.50
    Case of 7 $14.00/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.