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air filter 18x20x1

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

$94.95

Filterbuy 18x25x2 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 1.75)

4.6(1240)

Loved for: quality filters

$244.98

Filterbuy 18x36x4 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 35.50 x 3.63)

4.4(3282)

Loved for: affordable pricing

$189.96

Filterbuy 18x22x4 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 21.50 x 3.63)

4.4(3282)

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$168.96

Filterbuy 18x25x4 Air Filter (4-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 3.63)

4.4(3037)

$279.96

Filterbuy 18x30x4 Air Filter (12-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 29.50 x 3.63)

4.5(3289)

Loved for: quality construction

$136.96

Filterbuy 18x22x4 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 21.50 x 3.63)

4.4(3282)

Loved for: affordable pricing

$91.95

Filterbuy 18x22x2 Air Filter (5-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 21.50 x 1.75)

4.6(2082)

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$142.95

Filterbuy 18x36x2 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 35.50 x 1.75)

4.6(1240)

Loved for: quality filters

$55.98

Filterbuy 18x25x2 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 1.75)

4.6(2082)

Loved for: high quality

$138.95

Filterbuy 18x24x4 Air Filter (5-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 23.38 x 3.63)

4.5(3289)

Loved for: quality construction

$74.98

Filterbuy 18x25x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 3.63)

4.5(3289)

Loved for: quality construction

$379.92

Filterbuy 18x24x4 Air Filter (12-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 23.38 x 3.63)

4.4(3037)

Loved for: effective filtration

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$146.88

Filterbuy 18x25x2 Air Filter (12-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 1.75)

4.6(2082)

Loved for: high quality filters

$241.95

Filterbuy 18x36x4 Air Filter (5-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 35.50 x 3.63)

4.4(3037)

Loved for: effective filtration

$187.95

Filterbuy 18x24x4 Air Filter (5-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 23.38 x 3.63)

4.4(3037)

Loved for: effective filtration

$89.98

Filterbuy 18x36x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 35.50 x 3.63)

4.5(3289)

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$69.96

Filterbuy 18x25x2 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 1.75)

4.6(2082)

Loved for: high quality

$99.99

Filterbuy 18x25x4 Air Filter (3-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 3.63)

4.5(3289)

Loved for: effective dust reduction

$138.95

Filterbuy 18x30x4 Air Filter (5-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 29.50 x 3.63)

4.5(3289)

Loved for: quality construction

$206.94

Filterbuy 18x36x4 Air Filter (6-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 35.50 x 3.63)

4.5(3289)

Loved for: quality construction

$122.95

Filterbuy 18x30x2 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 29.50 x 1.75)

4.6(1240)

Loved for: quality filters

$107.94

Filterbuy 18x25x2 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 24.50 x 1.75)

4.6(1240)

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$228.96

Filterbuy 18x22x2 Air Filter (12-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 21.50 x 1.75)

4.6(1304)

Loved for: excellent quality

$94.96

Filterbuy 18x22x2 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 21.50 x 1.75)

4.6(1240)

Loved for: quality filters

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