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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
NaturalAire 22 in. W X 22 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
USA
In-Store

Naturalaire

NaturalAire 22 in. W X 22 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter

MPN: 84858.012222

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter
USA
Ships Today

Flanders

Flanders 20 in. W X 360 in. H X 1 in. Synthetic 1 MERV Air Filter

MPN: HH20130

$129.99
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AAF Flanders PREpleat M11 SC 20 in. W X 24 in. H X 2 in. Synthetic 11 MERV Pleated Air Filter
12 per case USA
Ships Today

Aaf Flanders

AAF Flanders PREpleat M11 SC 20 in. W X 24 in. H X 2 in. Synthetic 11 MERV Pleated Air Filter

MPN: 85655.022024M11

$122.29 $143.88
15% OFF Case of 12 · with code
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AAF Flanders PREpleat LPD SC M10 12 in. W X 20 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1
12 per case USA
Ships Today

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 12 in. W X 20 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.021220

$77.41 $91.08
15% OFF Case of 12 · with code
View Details
AAF Flanders PREpleat LPD SC M10 18 in. W X 20 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1
USA
In-Store

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 18 in. W X 20 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.021820

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
NaturalAire 12 in. W X 20 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
12 per case USA
Ships Today

Naturalaire

NaturalAire 12 in. W X 20 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter

MPN: 84858.011220

$71.29 $83.88
15% OFF Case of 12 · with code
View Details
Flanders EZ Flow II 18 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 18 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011830

$40.69 $47.88
15% OFF Case of 12 · with code
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AAF Flanders PREpleat LPD SC M10 18 in. W X 18 in. H X 2 in. Synthetic 10 MERV Pleated Pre-Pleat Fil
USA
In-Store

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 18 in. W X 18 in. H X 2 in. Synthetic 10 MERV Pleated Pre-Pleat Fil

MPN: 80055.021818

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
NaturalAire 12 in. W X 25 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
12 per case USA
Ships Today

Naturalaire

NaturalAire 12 in. W X 25 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter

MPN: 84858.011225

$173.29 $203.88
15% OFF Case of 12 · with code
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Flanders EZ Flow II 15 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 15 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011530

$61.09 $71.88
15% OFF Case of 12 · with code
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AAF Flanders PREpleat LPD SC M10 16 in. W X 16 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1
12 per case USA
Ships Today

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 16 in. W X 16 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.021616

$132.49 $155.88
15% OFF Case of 12 · with code
View Details
Flanders 16 in. W X 20 in. H X 4-1/2 in. Synthetic 8 MERV Pleated Air Filter
USA
In-Store

Flanders

Flanders 16 in. W X 20 in. H X 4-1/2 in. Synthetic 8 MERV Pleated Air Filter

MPN: 82655.0451620

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Flanders EZ Flow II 12 in. W X 16 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 16 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011216

$57.01 $67.08
15% OFF Case of 12 · with code
View Details
Flanders EZ Flow II 19 in. W X 27 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA
Ships Today

Flanders

Flanders EZ Flow II 19 in. W X 27 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011927

$57.01 $67.08
15% OFF Case of 12 · with code
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Flanders EZ Flow II 12 in. W X 25 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 25 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011225

$36.61 $43.08
15% OFF Case of 12 · with code
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Filtrete 14 in. W X 30 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case
Ships Today

Filtrete

Filtrete 14 in. W X 30 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA24DC-4

$84.96 $99.96
15% OFF Case of 4 · with code
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Filtrete 24 in. W X 24 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case
Ships Today

Filtrete

Filtrete 24 in. W X 24 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA12DC-4

$84.96 $99.96
15% OFF Case of 4 · with code
View Details
Filtrete 20 in. W X 25 in. H X 4 in. Pleated 1000 MPR Pleated Allergen Air Filter
4 per case
Ships Today

Filtrete

Filtrete 20 in. W X 25 in. H X 4 in. Pleated 1000 MPR Pleated Allergen Air Filter

MPN: NADP03-4IN-4

$95.16 $111.96
15% OFF Case of 4 · with code
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Filtrete Allergen Defense 16 in. W X 25 in. H X 4 in. Pleated 1000 MPR Pleated Allergen Air Filter 1
4 per case
Ships Today

Filtrete

Filtrete Allergen Defense 16 in. W X 25 in. H X 4 in. Pleated 1000 MPR Pleated Allergen Air Filter 1

MPN: NADP01-4IN-4

$95.16 $111.96
15% OFF Case of 4 · with code
View Details
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
In-Store

Filtrete

Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter

MPN: AL43-4

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Filtrete Allergen Defense 18 in. W X 20 in. H X 1 in. Polypropylene 11 MERV Pleated Air Filter
4 per case
Ships Today

Filtrete

Filtrete Allergen Defense 18 in. W X 20 in. H X 1 in. Polypropylene 11 MERV Pleated Air Filter

MPN: 9845-4

$50.96 $59.96
15% OFF Case of 4 · with code
View Details
Filtrete 18 in. W X 18 in. H X 1 in. 1500 MPR Pleated Ultra Allergen Filter
USA
In-Store

Filtrete

Filtrete 18 in. W X 18 in. H X 1 in. 1500 MPR Pleated Ultra Allergen Filter

MPN: 2017-4

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Filtrete 16 in. W X 16 in. H X 1 in. 1500 MPR Pleated Air Filter
4 per case USA
Ships Today

Filtrete

Filtrete 16 in. W X 16 in. H X 1 in. 1500 MPR Pleated Air Filter

MPN: 2016DC-4

$74.76 $87.96
15% OFF Case of 4 · with code
View Details
Filtrete 20 in. W X 24 in. H X 1 in. 1500 MPR Pleated Air Filter
4 per case USA
Ships Today

Filtrete

Filtrete 20 in. W X 24 in. H X 1 in. 1500 MPR Pleated Air Filter

MPN: 2026DC-4

$74.76 $87.96
15% OFF Case of 4 · 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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