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air filter 18x20x1

1,000+ results for “air filter 18x20x1”

$34.95

Aerostar 18x20x1 MERV 6 Pleated Air Filter, AC Furnace Air Filter, 6PK (Actual Size: 17 3/4"x 19 3/4" x 3/4")

$38.95

Filterbuy 18x20x1 Air Filter (5-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(20458)

Loved for: affordable pricing

$26.77 - $44.95

Aerostar AC Furnace Air Filter - Dust - MERV 8 - Box of 4

4.2(40)

Loved for: snug fit

$33.99

Filterbuy 18x20x1 Air Filter (3-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(20458)

$38.97

Simply 20x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75"x19.75"x0.75") DUST, Pet, & Allergy Control

4.6(610)

$39.57 - $99.74

Simply Air Filter, MERV 13, 4 Pack, Furnace Air Filter for HVAC, Multiple Sizes

4.6(610)

Loved for: reasonable price

$49.97 - $90.16

Simply Air Filter, MERV 11, 8 Pack, Furnace Air Filter for HVAC

4.6(609)

Loved for: quality construction

$32.98

Filterbuy 18x20x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(20458)

$42.97 - $86.97

Simply Air Filters, MERV 8, 8 Pack, Furnace Air Filter for HVAC

4.6(609)

Loved for: great quality

$27.99

Filterbuy 18x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(20458)

Loved for: affordable pricing

$70.96

Filterbuy 17x20x1 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 16.50 x 19.50 x 0.75)

4.7(11778)

$55.99($9.33/count)

Filtrete 20"x25"x1" 6pk Allergens & Pet Dander MPR 1000 MERV 11 Electrostatic Captures Dust and Pollen HVAC Furnace Air Filter

4.7(511)

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$47.96

Filterbuy 20x20x1 Air Filter (4-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.7(9760)

Loved for: high quality

$32.98 - $49.94

Aerostar AC Furnace Air Filter - Allergy - MERV 11 - Box of 4

3.9(21)

$44.98

Filterbuy 18x20x1 Air Filter (2-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(9760)

Loved for: high quality

$33.95

Filterbuy 20x20x1 Air Filter (5-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.7(20459)

Loved for: affordable pricing

$13.49

Filtrete 14"x14"x1" Allergens & Pet Dander MPR 1000 MERV 11 Electrostatic Captures Dust and Pollen HVAC Furnace Air Filter

4.7(570)

$44.95

Filterbuy 18x20x1 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(11778)

Loved for: great quality

$151.98

Filterbuy 18x20x1 Air Filter (6-Pack), Pleated MERV 8 Odor Eliminator Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

$22.99($11.50/count)

Filtrete 14"x25"x1" 2pk Allergens & Pet Dander MPR 1000 MERV 11 Electrostatic Captures Dust and Pollen HVAC Furnace Air Filter

4.7(570)

$74.97 - $128.04

Simply Air Filter, MERV 11, 12 Pack, Furnace Air Filter for HVAC

4.6(609)

Loved for: effective filtration

$33.98 - $65.90

Aerostar AC Furnace Air Filter - Health - MERV 13 - Box of 4

3.9(7)

$30.99

Filterbuy 18x20x1 Air Filter (1-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.7(11778)

Loved for: high air quality improvement

$26.99 - $114.99

Simply Air Filters, MERV 8, 4 Pack, Furnace Air Filter for HVAC, Multiple Sizes

4.6(610)

Loved for: quality filters

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