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18x20x1 air filter

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

$47.94

Filterbuy 20x20x1 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.6(20932)

$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(27772)

Loved for: quality

$39.57 - $99.74

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

4.6(608)

Loved for: great quality

$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(27772)

Loved for: quality

$79.99($13.33/count)

Filtrete 6pk 20''x30''x1'' MPR 1000 Merv 11 Allergen Defense Air Filter

4.7(511)

$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(27773)

Loved for: quality

$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)

4.6(16805)

Loved for: easy installation

$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)

4.6(20932)

Loved for: air quality improvement

$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)

$74.97 - $128.04

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

4.6(607)

Loved for: quality filtration

$43.97 - $79.91

Aerostar AC Furnace Air Filter - Health - MERV 13 - Box of 6

4.2(20)

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$9.99

Filtrete 20" x 25" MPR 700 Dust Pollen and Pet Dander Electrostatic Air Filter: MERV 8, Furnace & AC Filter, 3-Month Use

4.8(134)

$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(27772)

Loved for: quality construction

$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)

4.6(20932)

Loved for: high air quality improvement

$73.98

Filterbuy 8x20x1 Air Filter (3-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 8.00 x 20.00 x 0.75)

$29.98

Filterbuy 16x20x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 19.50 x 0.75)

4.7(27772)

Loved for: quality

$29.99

Filterbuy 17x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 16.50 x 19.50 x 0.75)

4.7(27772)

Loved for: quality

$21.99

Filterbuy 14x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 13.50 x 19.50 x 0.75)

4.7(27772)

Loved for: affordable pricing

$9.99

Filtrete 14" x 20" MPR 700 Dust Pollen & Pet Dander Electrostatic Air Filter: MERV 8, Furnace & AC Compatible

4.8(12)

$44.98

Filterbuy 19x20x1 Air Filter (2-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.00 x 20.00 x 0.75)

4.6(20932)

$84.99

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

$68.99

Simply 17x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 16.75"x19.75"x0.75") DUST, Pet, & Allergy Control

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