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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
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
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 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 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 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
Flanders EZ Flow II 24 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 24 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.012430

$59.88
Save 15% at $75+ Case of 12
Flanders EZ Flow II 15 in. W X 20 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 15 in. W X 20 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011520

$47.88
Save 15% at $75+ Case of 12
Filtrete 14 in. W X 20 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
4 per case

Filtrete

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

MPN: 9805-4

$59.96
Save 15% at $75+ Case of 4
Filtrete 15 in. W X 20 in. H X 1 in. 1000 MPR Pleated Microparticle Air Filter
4 per case USA

Filtrete

Filtrete 15 in. W X 20 in. H X 1 in. 1000 MPR Pleated Microparticle Air Filter

MPN: 9806-4

$59.96
Save 15% at $75+ Case of 4
Filtrete Allergen Defense 14 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter
4 per case USA

Filtrete

Filtrete Allergen Defense 14 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter

MPN: 9804-4

$59.96
Save 15% at $75+ Case of 4
Flanders EZ Flow II 16 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 16 in. W X 30 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.01163

$67.08
Save 15% at $75+ Case of 12
Flanders EZ Flow II 10 in. W X 20 in. H X 1 in. Fiberglass 1 MERV Air Filter
12 per case USA

Flanders

Flanders EZ Flow II 10 in. W X 20 in. H X 1 in. Fiberglass 1 MERV Air Filter

MPN: 10055.011020

$55.08
Save 15% at $75+ Case of 12
Filtrete Allergen Defense 20 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter
4 per case

Filtrete

Filtrete Allergen Defense 20 in. W X 25 in. H X 1 in. 1000 MPR Pleated Air Filter

MPN: 9803-4

$59.96
Save 15% at $75+ Case of 4
Filtrete 16 in. W X 20 in. H X 1 in. Polypropylene 1500 MPR Smart Air Filter
4 per case

Filtrete

Filtrete 16 in. W X 20 in. H X 1 in. Polypropylene 1500 MPR Smart Air Filter

MPN: S-2000-4

$111.96
Save 15% at $75+ Case of 4
Filtrete 20 in. W X 25 in. H X 1 in. Polypropylene 1500 MPR Smart Air Filter
4 per case

Filtrete

Filtrete 20 in. W X 25 in. H X 1 in. Polypropylene 1500 MPR Smart Air Filter

MPN: S-2003-4

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

Fiberglass 1in FiltersPlumbing & HeatingPleated 2in FiltersPleated 1in FiltersPleated 3-5in Filters
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