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18x20x1 air filter

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

$78.36

Filter King 18x20x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 19.5 x .75"

$39.96

Filterbuy 20x20x1 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.6(20843)

$60.28

reg $74.95

Sale

AAF Flanders EZ Flow II 18 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter (Pack of 12)

$39.99

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

$37.99

Filterbuy 18x18x2 Air Filter (1-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.75 x 17.75 x 1.75)

4.6(20843)

$35.97

Filterbuy 20x20x1 Air Filter (3-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.6(20843)

$88.97

reg $98.06

Sale

Pamlico Air 18 in. W X 20 in. H X 1 in. D Pleated 8 MERV Pleated Air Filter - Case of 12

$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

4.6(603)

Loved for: reasonable price

$37.78

Filter King 19x20x1 Air Filter | 2-PACK | MERV 8 | HVAC Pleated AC Furnace Filters | MADE IN USA | Actual Size: 19 x 20 x .75"

$30.99

Filterbuy 19x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.00 x 20.00 x 0.75)

4.7(27600)

$78.96

Filterbuy 12x20x1 Air Filter (12-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 11.50 x 19.50 x 0.75)

4.7(27600)

$26.99

Filterbuy 20x20x1 Air Filter (1-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.6(20843)

Sponsored

$109.92

Filterbuy 18x20x1 Air Filter (12-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.6(16722)

$20.99

Filterbuy 16x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 15.50 x 19.50 x 0.75)

4.7(27600)

Loved for: affordable pricing

$23.99

Filterbuy 20x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.7(27600)

Loved for: affordable pricing

$27.98

Filterbuy 20x20x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.7(27600)

Loved for: affordable pricing

$34.98

Filterbuy 14x20x1 Air Filter (2-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 13.50 x 19.50 x 0.75)

4.6(16722)

$27.99

Filterbuy 13x20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 12.88 x 19.88 x 0.75)

$47.97

Filterbuy 18x20x1 Air Filter (3-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 0.75)

4.6(16722)

$39.99

Filterbuy 14x20x1 Air Filter (3-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 13.50 x 19.50 x 0.75)

4.6(16722)

Loved for: effective filtration

$42.99

Filterbuy 20x20x1 Air Filter (3-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 19.50 x 19.50 x 0.75)

4.6(16722)

$44.99

Filterbuy 18x18x1 Air Filter (1-Pack), Pleated MERV 8 Odor Eliminator Replacement HVAC AC Furnace Filters (Actual Size: 17.75 x 17.75 x 0.75)

$82.98

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

$34.98

Filterbuy 12x18x1 Air Filter (2-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 11.50 x 17.50 x 0.75)

4.6(20843)

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