OEM furnace filters from top brands including, Lennox, Trion Air Bear, Trane, Honeywell, Aprilaire and more.

113 of 395 products

Koch 102-041-003 - 12" x 25" x 1" Pleated Air Filter, MERV 8

Koch 102-041-003 - 12" x 25" x 1" Pleated Air Filter, MERV 8

Regular price From $23.71 USD

Regular price Sale price From $23.71 USD
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Koch 102-041-042 - 16.375" x 21.5" x 1" Pleated Air Filter, MERV 8

Koch 102-041-042 - 16.375" x 21.5" x 1" Pleated Air Filter, MERV 8

Regular price From $24.19 USD

Regular price Sale price From $24.19 USD
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Trion Air Bear T08-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Regular price $37.55 USD

Regular price Sale price $37.55 USD
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Trion Air Bear T08-20201-6P - 20" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-20201-6P - 20" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Regular price $34.45 USD

Regular price Sale price $34.45 USD
Unit price per
Trion Air Bear T08-16251-6P - 16" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-16251-6P - 16" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Regular price $33.88 USD

Regular price Sale price $33.88 USD
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Trion Air Bear T08-14201-6P - 14" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-14201-6P - 14" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Regular price $31.93 USD

Regular price Sale price $31.93 USD
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Trane BAYFTFR24M2 - Perfect Fit 5" Replacement Air Filter 24.5" Width

Trane BAYFTFR24M2 - Perfect Fit 5" Replacement Air Filter 24.5" Width

Regular price $122.12 USD

Regular price Sale price $122.12 USD
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Trane BAYFTFR14M2 - Perfect Fit 5" Replacement Air Filter 14.5" Width

Trane BAYFTFR14M2 - Perfect Fit 5" Replacement Air Filter 14.5" Width

Regular price $96.35 USD

Regular price Sale price $96.35 USD
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Trane BAYFTFR21M2 (2-Pack) MERV 8 Replacement Filter (21 x 27 x 5")

Trane BAYFTFR21M2 (2-Pack) MERV 8 Replacement Filter (21 x 27 x 5")

Regular price $113.39 USD

Regular price Sale price $113.39 USD
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Koch P8S2 274 294 - 28 X 30 X 2 Pleated Filter For Geothermal Systems MERV 8

Koch P8S2 274 294 - 28 X 30 X 2 Pleated Filter For Geothermal Systems MERV 8

Regular price From $46.72 USD

Regular price Sale price From $46.72 USD
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Trion 455602427 Air Bear Cub 16x25x3 Media Air Cleaner MERV 8 Warm Grey

Trion 455602427 Air Bear Cub 16x25x3 Media Air Cleaner MERV 8 Warm Grey

Regular price $155.23 USD

Regular price Sale price $155.23 USD
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Trion 272649-08-205 - (2 Pack) 16" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Trion 272649-08-205 - (2 Pack) 16" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Regular price $44.43 USD

Regular price Sale price $44.43 USD
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Trion 272649-08-202 - (2 Pack) 20" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Trion 272649-08-202 - (2 Pack) 20" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Regular price $46.86 USD

Regular price Sale price $46.86 USD
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113 of 395 products

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Koch 102-041-003 - 12" x 25" x 1" Pleated Air Filter, MERV 8

Koch 102-041-003 - 12" x 25" x 1" Pleated Air Filter, MERV 8

Koch 102-041-042 - 16.375" x 21.5" x 1" Pleated Air Filter, MERV 8

Koch 102-041-042 - 16.375" x 21.5" x 1" Pleated Air Filter, MERV 8

Trion Air Bear T08-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-20201-6P - 20" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-20201-6P - 20" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-16251-6P - 16" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-16251-6P - 16" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-14201-6P - 14" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Trion Air Bear T08-14201-6P - 14" x 20" x 1" Pleated Air Filter (6-Pack), MERV 8

Trane BAYFTFR24M2 - Perfect Fit 5" Replacement Air Filter 24.5" Width

Trane BAYFTFR24M2 - Perfect Fit 5" Replacement Air Filter 24.5" Width

Trane BAYFTFR14M2 - Perfect Fit 5" Replacement Air Filter 14.5" Width

Trane BAYFTFR14M2 - Perfect Fit 5" Replacement Air Filter 14.5" Width

Trane BAYFTFR21M2 (2-Pack) MERV 8 Replacement Filter (21 x 27 x 5")

Trane BAYFTFR21M2 (2-Pack) MERV 8 Replacement Filter (21 x 27 x 5")

Koch P8S2 274 294 - 28 X 30 X 2 Pleated Filter For Geothermal Systems MERV 8

Koch P8S2 274 294 - 28 X 30 X 2 Pleated Filter For Geothermal Systems MERV 8

Trion 455602427 Air Bear Cub 16x25x3 Media Air Cleaner MERV 8 Warm Grey

Trion 455602427 Air Bear Cub 16x25x3 Media Air Cleaner MERV 8 Warm Grey

Trion 272649-08-205 - (2 Pack) 16" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Trion 272649-08-205 - (2 Pack) 16" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Trion 272649-08-202 - (2 Pack) 20" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

Trion 272649-08-202 - (2 Pack) 20" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8

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