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18x20x1 air filter

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

$43.98

Elite Allergen Air Filter - 13 MERV RATING

4.8(231)

$43.99

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$37.99

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$45.96

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Loved for: air quality improvement

$38.97

Filterbuy 18x20x1 Air Filter (3-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

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$37.99

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$39.96

Filterbuy 16x20x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 19.50 x 0.75)

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$39.98

Filterbuy 16x18x1 Air Filter (2-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 17.50 x 0.75)

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Advanced Allergen Air Filter - 11 MERV RATING

4.7(235)

$34.96

Filterbuy 18x20x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

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$37.98

Filterbuy 20x20x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

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$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)

4.8(334)

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$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)

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$42.95

Filterbuy 20x20x1 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

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$89.88

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$53.99

UBeesize 18x20x1 Reusable Electrostatic Air Filter HVAC AC Furnace Filter,MERV 8,Washable, Lasts a Lifetime,Permanent Air Filter, Home And Office

$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")

$45.99

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

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4.3(16)

$51.98

Filterbuy 18x18x1 Air Filter (2-Pack), Pleated MERV 8 Odor Eliminator Replacement HVAC AC Furnace Filters (Actual Size: 17.75 x 17.75 x 0.75)

$42.97

Simply 15x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 14.75"x19.75"x0.75") DUST, Pet, & Allergy Control

4.7(591)

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