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Shop Local. Support Independent. 338 products available
Furnace Filters

Shop 338 furnace filters at National Hardware Group — from trusted brands like 3M, Aaf Flanders, Aprilaire and more. Every item is an authorized, warranty-backed purchase, with prices starting around $2.99. Ships nationwide, free over $75 on most items, or find it at your local store.

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338 products
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

Flanders

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

MPN: HH20130

$129.99
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

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

$143.88
Save 15% at $75+ Case of 12
AAF Flanders PREpleat LPD SC M10 12 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 12 in. W X 20 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.021220

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
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

Naturalaire

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

MPN: 84858.011220

$83.88
Save 15% at $75+ Case of 12
Flanders EZ Flow II 18 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 18 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011830

$47.88
Save 15% at $75+ Case of 12
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
Flanders EZ Flow II 15 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 15 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011530

$71.88
Save 15% at $75+ Case of 12
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

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

$155.88
Save 15% at $75+ Case of 12
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

Flanders

Flanders EZ Flow II 12 in. W X 16 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011216

$67.08
Save 15% at $75+ Case of 12
Flanders EZ Flow II 19 in. W X 27 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

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

MPN: 10055.011927

$67.08
Save 15% at $75+ Case of 12
Flanders EZ Flow II 12 in. W X 25 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 12 in. W X 25 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011225

$43.08
Save 15% at $75+ Case of 12
Filtrete 14 in. W X 30 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case

Filtrete

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

MPN: UA24DC-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 24 in. W X 24 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case

Filtrete

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

MPN: UA12DC-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 20 in. W X 25 in. H X 4 in. Pleated 1000 MPR Pleated Allergen Air Filter
4 per case

Filtrete

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

MPN: NADP03-4IN-4

$111.96
Save 15% at $75+ Case of 4
Filtrete Allergen Defense 16 in. W X 25 in. H X 4 in. Pleated 1000 MPR Pleated Allergen Air Filter 1
4 per case

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

$111.96
Save 15% at $75+ Case of 4
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

Filtrete

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

MPN: 9845-4

$59.96
Save 15% at $75+ Case of 4
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

Filtrete

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

MPN: 2016DC-4

$87.96
Save 15% at $75+ Case of 4
Filtrete 20 in. W X 24 in. H X 1 in. 1500 MPR Pleated Air Filter
4 per case USA

Filtrete

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

MPN: 2026DC-4

$87.96
Save 15% at $75+ Case of 4
Filtrete 10 in. W X 20 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 10 in. W X 20 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter

MPN: 9807-4

$59.96
Save 15% at $75+ Case of 4
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Related categories

Pleated 1in FiltersPlumbing & HeatingFurnance Filter AccessoriesPleated 2in FiltersFiberglass 1in FiltersPleated 3-5in Filters
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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 familiar 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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