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Furnace Filters

Browse furnace filters from the trusted brands you know — sourced through the same distribution network that supplies thousands of independent hardware stores nationwide. Every order helps keep them on the corner.

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348 products Same-day shipping cutoff: 11 AM PT
BestAir 24 in. W X 18 in. H X 1 in. 8 MERV Pleated Air Filter
12 per case USA
Ships Today

Bestair

BestAir 24 in. W X 18 in. H X 1 in. 8 MERV Pleated Air Filter

MPN: BA1-1824-8

$77.41 $91.08
15% OFF Case of 12 · with code
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BestAir 20 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 20 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: HW2020-8R

$68.82 $80.97
15% OFF Case of 3 · with code
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BestAir 24 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 24 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: BA4-2024-8

$38.22 $44.97
15% OFF Case of 3 · with code
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BestAir 24 in. W X 12 in. H X 1 in. 8 MERV Pleated Air Filter
12 per case USA
Ships Today

Bestair

BestAir 24 in. W X 12 in. H X 1 in. 8 MERV Pleated Air Filter

MPN: BA1-1224-8

$61.09 $71.88
15% OFF Case of 12 · with code
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BestAir 24 in. W X 24 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 24 in. W X 24 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: BA4-2424-8

$43.32 $50.97
15% OFF Case of 3 · with code
View Details
BestAir 20 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 20 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: BA4-2020-8

$38.22 $44.97
15% OFF Case of 3 · with code
View Details
BestAir 16 in. W X 25 in. H X 3 in. 11 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 16 in. W X 25 in. H X 3 in. 11 MERV Pleated Air Filter

MPN: AB3-1625-11R

$76.47 $89.97
15% OFF Case of 3 · with code
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BestAir 16 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 16 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: BA4-1620-8

$38.22 $44.97
15% OFF Case of 3 · with code
View Details
Flanders EZ Flow II 20 in. W X 24 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA
Ships Today

Flanders

Flanders EZ Flow II 20 in. W X 24 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.012024

$46.81 $55.08
15% OFF Case of 12 · with code
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Flanders EZ Flow II 12 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA
Ships Today

Flanders

Flanders EZ Flow II 12 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011230

$46.81 $55.08
15% OFF Case of 12 · with code
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AAF Flanders PREpleat LPD HC M10 24 in. W X 24 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1
USA
In-Store

Aaf Flanders

AAF Flanders PREpleat LPD HC M10 24 in. W X 24 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80255.022424

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Filtrete Ultra 20 in. W X 25 in. H X 5 in. Polyester 1550 MPR Pleated Allergen Air Filter
2 per case USA
Ships Today

Filtrete

Filtrete Ultra 20 in. W X 25 in. H X 5 in. Polyester 1550 MPR Pleated Allergen Air Filter

MPN: NDP03-5IN-2

$66.28 $77.98
15% OFF Case of 2 · with code
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Filtrete Slim 16 in. W X 25 in. H X 4 in. Polyester 1550 MPR Pleated Allergen Air Filter
4 per case
Ships Today

Filtrete

Filtrete Slim 16 in. W X 25 in. H X 4 in. Polyester 1550 MPR Pleated Allergen Air Filter

MPN: NDP01-4S-4

$108.76 $127.96
15% OFF Case of 4 · with code
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Filtrete Slim 25 in. W X 20 in. H X 4 in. Polyester 1550 MPR Pleated Allergen Air Filter
4 per case
Ships Today

Filtrete

Filtrete Slim 25 in. W X 20 in. H X 4 in. Polyester 1550 MPR Pleated Allergen Air Filter

MPN: NDP03-4S-4

$108.76 $127.96
15% OFF Case of 4 · with code
View Details
Filtrete 16 in. W X 25 in. H X 5 in. Polypropylene 1550 MPR Pleated Allergen Air Filter
2 per case USA
Ships Today

Filtrete

Filtrete 16 in. W X 25 in. H X 5 in. Polypropylene 1550 MPR Pleated Allergen Air Filter

MPN: NDP01-5IN-2

$66.28 $77.98
15% OFF Case of 2 · with code
View Details
BestAir 20 in. W X 25 in. H X 4 in. 13 MERV Pleated Air Filter
2 per case USA
Ships Today

Bestair

BestAir 20 in. W X 25 in. H X 4 in. 13 MERV Pleated Air Filter

MPN: SG213-BOX-13R

$84.98 $99.98
15% OFF Case of 2 · with code
View Details
BestAir 16 in. W X 25 in. H X 4 in. 11 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 16 in. W X 25 in. H X 4 in. 11 MERV Pleated Air Filter

MPN: PFHW1625-11CR

$94.32 $110.97
15% OFF Case of 3 · with code
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BestAir 25 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 25 in. W X 20 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: BA4-2025-8

$38.22 $44.97
15% OFF Case of 3 · with code
View Details
BestAir 25 in. W X 16 in. H X 4 in. 13 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 25 in. W X 16 in. H X 4 in. 13 MERV Pleated Air Filter

MPN: HW1625-13R

$107.07 $125.97
15% OFF Case of 3 · with code
View Details
BestAir 20 in. W X 25 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 20 in. W X 25 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: HW2025-8R

$68.82 $80.97
15% OFF Case of 3 · with code
View Details
BestAir 25 in. W X 16 in. H X 4 in. 11 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 25 in. W X 16 in. H X 4 in. 11 MERV Pleated Air Filter

MPN: HW1625-11R

$76.47 $89.97
15% OFF Case of 3 · with code
View Details
BestAir 25 in. W X 20 in. H X 4 in. 13 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 25 in. W X 20 in. H X 4 in. 13 MERV Pleated Air Filter

MPN: HW2025-13R

$107.07 $125.97
15% OFF Case of 3 · with code
View Details
BestAir 25 in. W X 16 in. H X 4 in. 8 MERV Pleated Air Filter
3 per case USA
Ships Today

Bestair

BestAir 25 in. W X 16 in. H X 4 in. 8 MERV Pleated Air Filter

MPN: HW1625-8R

$68.82 $80.97
15% OFF Case of 3 · with code
View Details
BestAir 25 in. W X 20 in. H X 6 in. 11 MERV Pleated Air Filter
2 per case USA
Ships Today

Bestair

BestAir 25 in. W X 20 in. H X 6 in. 11 MERV Pleated Air Filter

MPN: A201-SGM-BOX11R

$66.28 $77.98
15% OFF Case of 2 · with code
View Details
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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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