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Shop Local. Support Independent. 312 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 $3.59. Ships nationwide, free over $75 on most items, or find it at your local store.

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312 products
Filtrete 14 in. W X 20 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk
3 per case

Filtrete

Filtrete 14 in. W X 20 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk

MPN: 9805-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
Filtrete 20 in. W X 30 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk
3 per case

Filtrete

Filtrete 20 in. W X 30 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk

MPN: 9822-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
Filtrete 14 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk
3 per case USA

Filtrete

Filtrete 14 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk

MPN: 9804-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
Filtrete 20 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk
3 per case

Filtrete

Filtrete 20 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk

MPN: 9803-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
Filtrete 16 in. W X 20 in. H X 1 in. Polypropylene 1000 MPR Pleated Air Filter 2 pk
3 per case

Filtrete

Filtrete 16 in. W X 20 in. H X 1 in. Polypropylene 1000 MPR Pleated Air Filter 2 pk

MPN: 9800-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
Filtrete 16 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk
3 per case

Filtrete

Filtrete 16 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk

MPN: 9801-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
Filtrete 20 in. W X 20 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk
3 per case

Filtrete

Filtrete 20 in. W X 20 in. H X 1 in. 1000 MPR Pleated Air Filter 2 pk

MPN: 9802-2PK-HDW

$80.97
Save 15% at $75+ Case of 3
NaturalAire 10 in. W X 10 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
12 per case USA

Naturalaire

NaturalAire 10 in. W X 10 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter

MPN: 84858.011010

$131.88
Save 15% at $75+ Case of 12
AAF Flanders PREpleat LPD SC M10 18 in. W X 24 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1
12 per case USA

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 18 in. W X 24 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.021824

$107.88
Save 15% at $75+ Case of 12
AAF Flanders PREpleat LPD SC M10 16 in. W X 24 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 24 in. H X 2 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.021624

$103.08
Save 15% at $75+ Case of 12
AAF Flanders PREpleat LPD SC M10 18 in. W X 14 in. H X 1 in. Synthetic 10 MERV Pleated Air Filter 1
12 per case USA

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 18 in. W X 14 in. H X 1 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.011418

$155.88
Save 15% at $75+ Case of 12
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
4 per case USA

3M

3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter

MPN: NDP02-4IN-4

$147.96
Save 15% at $75+ Case of 4
Flanders EZ Flow II 8 in. W X 16 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 8 in. W X 16 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.01816

$55.08
Save 15% at $75+ Case of 12
Filtrete 14 in. W X 20 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 14 in. W X 20 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA05-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 20 in. W X 25 in. H X 1 in. Polypropylene 1900 MPR Pleated Air Filter
4 per case USA

Filtrete

Filtrete 20 in. W X 25 in. H X 1 in. Polypropylene 1900 MPR Pleated Air Filter

MPN: UA03-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 14 in. W X 25 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 14 in. W X 25 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA04-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 20 in. W X 20 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 20 in. W X 20 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA02-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 16 in. W X 20 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 16 in. W X 20 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA00-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 16 in. W X 25 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 16 in. W X 25 in. H X 1 in. Polypropylene 1900 MPR Pleated Allergen Air Filter

MPN: UA01-4

$99.96
Save 15% at $75+ Case of 4
Filtrete 20 in. W X 25 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
4 per case

3M

Filtrete 20 in. W X 25 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter

MPN: NDP03-4IN-4

$147.96
Save 15% at $75+ Case of 4
Filtrete 16 in. W X 25 in. H X 4-5/16 in. Polyester 1550 MPR Pleated Allergen Air Filter
4 per case USA

Filtrete

Filtrete 16 in. W X 25 in. H X 4-5/16 in. Polyester 1550 MPR Pleated Allergen Air Filter

MPN: NDP01-4IN-4

$147.96
Save 15% at $75+ Case of 4
AAF Flanders PREpleat LPD SC M10 20 in. W X 24 in. H X 4 in. Synthetic 10 MERV Pleated Air Filter 1
6 per case USA

Aaf Flanders

AAF Flanders PREpleat LPD SC M10 20 in. W X 24 in. H X 4 in. Synthetic 10 MERV Pleated Air Filter 1

MPN: 80055.042024

$113.94
Save 15% at $75+ Case of 6
Filtrete 14 in. W X 30 in. H X 1 in. Synthetic 1500 MPR Pleated Ultra Allergen Filter
4 per case USA

Filtrete

Filtrete 14 in. W X 30 in. H X 1 in. Synthetic 1500 MPR Pleated Ultra Allergen Filter

MPN: 2024DC-4

$87.96
Save 15% at $75+ Case of 4
Filtrete 14 in. W X 24 in. H X 1 in. 300 MPR Pleated Filter Dust
4 per case

Filtrete

Filtrete 14 in. W X 24 in. H X 1 in. 300 MPR Pleated Filter Dust

MPN: 323DC-4

$30.36
Save 15% at $75+ Case of 4
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Related categories

Pleated 1in FiltersPlumbing & HeatingPleated 2in FiltersPleated 3-5in FiltersFiberglass 1in Filters
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