Things that run out › Furnace & HVAC filters

Furnace & HVAC filters

Pleated air filters by nominal size and MERV rating. Replaced every one to three months depending on rating.

307 listed · often reordered every few months

Prices are the last we saw from the retailer and can change without warning. Cheapest first.

Glasfloss ZL 18x24x4 MERV 10 Pleated 4 Inch Air Filters. Box of 3. Actual Size: 17-1/2 x 23-1/2 x 3-3/4
Newegg

Glasfloss ZL 18x24x4 MERV 10 Pleated 4 Inch Air Filters. Box of 3. Actual Size: 17-1/2 x 23-1/2 x 3-3/4

$46.97
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Glasfloss ZL 14x25x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 24-1/2 x 7/8
Newegg

Glasfloss ZL 14x25x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 24-1/2 x 7/8

$46.97
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Glasfloss ZL 12x20x2 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 11-1/2 x 19-1/2 x 1-3/4
Newegg

Glasfloss ZL 12x20x2 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 11-1/2 x 19-1/2 x 1-3/4

$46.97
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Glasfloss ZL 20x25x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 19-1/2 x 24-1/2 x 7/8
Newegg

Glasfloss ZL 20x25x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 19-1/2 x 24-1/2 x 7/8

$46.97
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BNX 14x20x1 MERV 13 Air Filter 4 Pack - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria
Newegg

BNX 14x20x1 MERV 13 Air Filter 4 Pack - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria

$46.99
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Glasfloss ZL 14x20x2 MERV 10 Pleated 2 Inch Air Filters. Box of 6. Actual Size: 13-1/2 x 19-1/2 x 1-3/4
Newegg

Glasfloss ZL 14x20x2 MERV 10 Pleated 2 Inch Air Filters. Box of 6. Actual Size: 13-1/2 x 19-1/2 x 1-3/4

$47.97
View at retailer →
Glasfloss ZL 15x20x2 MERV 10 Pleated 2 Inch Air Filters. Box of 6. Actual Size: 14-1/2 x 19-1/2 x 1-3/4
Newegg

Glasfloss ZL 15x20x2 MERV 10 Pleated 2 Inch Air Filters. Box of 6. Actual Size: 14-1/2 x 19-1/2 x 1-3/4

$47.97
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Glasfloss ZL 20x25x4 MERV 10 Pleated 4 Inch Air Filters. Box of 3. Actual Size: 19-1/2 x 24-1/2 x 3-3/4
Newegg

Glasfloss ZL 20x25x4 MERV 10 Pleated 4 Inch Air Filters. Box of 3. Actual Size: 19-1/2 x 24-1/2 x 3-3/4

$47.97
View at retailer →
BNX 16x20x1 MERV 13 Air Filter 4 Pack - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria
Newegg

BNX 16x20x1 MERV 13 Air Filter 4 Pack - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria

$47.99
View at retailer →
BNX 20x20x1 MERV 13 Air Filter 4 Pack - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria
Newegg

BNX 20x20x1 MERV 13 Air Filter 4 Pack - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria

$47.99
View at retailer →
Air Filter 20x20x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack ACTUAL SIZE (19.75 x 19.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust,...
Newegg

Air Filter 20x20x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack ACTUAL SIZE (19.75 x 19.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust,...

$47.99
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Air Filter 12x12x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack ACTUAL SIZE (11.75 x 11.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust,...
Newegg

Air Filter 12x12x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack ACTUAL SIZE (11.75 x 11.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust,...

$48.74
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Glasfloss ZL 20x20x2 MERV 10 Pleated 2 Inch Air Filters. Box of 6. Actual Size: 19-1/2 x 19-1/2 x 1-3/4
Newegg

Glasfloss ZL 20x20x2 MERV 10 Pleated 2 Inch Air Filters. Box of 6. Actual Size: 19-1/2 x 19-1/2 x 1-3/4

$48.97
View at retailer →
Glasfloss ZL 20x24x4 MERV 10 Pleated 4 Inch Air Filters. Box of 3. Actual Size: 19-3/8 x 23-3/8 x 3-3/4
Newegg

Glasfloss ZL 20x24x4 MERV 10 Pleated 4 Inch Air Filters. Box of 3. Actual Size: 19-3/8 x 23-3/8 x 3-3/4

$48.97
View at retailer →
Air Filter 16x25x1 MERV 11 AC Filter, HVAC, Furnace Filter, 4 Pack ACTUAL SIZE (15.75 x 24.75 x 0.75) AC Filter, Furnace Filter, Dust, Pet Dander,...
Newegg

Air Filter 16x25x1 MERV 11 AC Filter, HVAC, Furnace Filter, 4 Pack ACTUAL SIZE (15.75 x 24.75 x 0.75) AC Filter, Furnace Filter, Dust, Pet Dander,...

$49.49
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12x12x1 MERV 11-4 Count - Pleated Furnace & Air Conditioner Filters - Removes Dust Mites, Cold & Flu Germs, Lint, Mold, Pet Dander, Allergy-Causing...
Newegg

12x12x1 MERV 11-4 Count - Pleated Furnace & Air Conditioner Filters - Removes Dust Mites, Cold & Flu Germs, Lint, Mold, Pet Dander, Allergy-Causing...

$49.49
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14x20x1 MERV 8 Air Filter, 4 Count, ACTUAL SIZE (13.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter Captures Dust, Lint & Pollen (MPR...
Newegg

14x20x1 MERV 8 Air Filter, 4 Count, ACTUAL SIZE (13.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter Captures Dust, Lint & Pollen (MPR...

$49.49
View at retailer →
Glasfloss ZL 14x14x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 13-1/2 x 7/8
Newegg

Glasfloss ZL 14x14x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 13-1/2 x 7/8

$49.97
View at retailer →
Glasfloss ZL 14x24x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 23-1/2 x 7/8
Newegg

Glasfloss ZL 14x24x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 23-1/2 x 7/8

$49.97
View at retailer →
Glasfloss ZL 18x18x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 17-1/2 x 17-1/2 x 7/8
Newegg

Glasfloss ZL 18x18x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 17-1/2 x 17-1/2 x 7/8

$49.97
View at retailer →
Glasfloss ZL 16x16x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 15-1/2 x 15-1/2 x 7/8
Newegg

Glasfloss ZL 16x16x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 15-1/2 x 15-1/2 x 7/8

$49.97
View at retailer →
Air Filter 16x16x1 MERV 13 AC Filter, HVAC, Furnace Filter, 4 Pack ACTUAL SIZE (15.75 x 15.75 x 0.75) AC Filter, Furnace Filter, Allergies, Dust,...
Newegg

Air Filter 16x16x1 MERV 13 AC Filter, HVAC, Furnace Filter, 4 Pack ACTUAL SIZE (15.75 x 15.75 x 0.75) AC Filter, Furnace Filter, Allergies, Dust,...

$50.24
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14x20x1 MERV 6 Air Filter, 6 Count, ACTUAL SIZE (13.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Lint & Pollen Control...
Newegg

14x20x1 MERV 6 Air Filter, 6 Count, ACTUAL SIZE (13.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Lint & Pollen Control...

$50.24
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Glasfloss ZL 12x12x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 11-1/2 x 11-1/2 x 7/8
Newegg

Glasfloss ZL 12x12x1 MERV 10 Pleated Air Filters. Box of 6. Actual Size: 11-1/2 x 11-1/2 x 7/8

$50.97
View at retailer →

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