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18x20x1 air filter

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

$33.99

Filtrete 20" x 25" x 4" Allergen Bacteria and Virus Air Filter 1550 MPR: MERV 12 Electrostatic for Home Furnaces

4.7(445)

$9.99

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

4.6(30)

$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(132)

$10.99

Filtrete 16" x 20" MPR 700 Dust Pollen & Pet Dander Electrostatic Air Filter: MERV 8, Furnace & AC Filter, 3-Month Use

4.7(134)

Loved for: easy installation

$9.99

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

4.7(11)

$29.49($14.75/count)

Filtrete Ultra Allergen, 2pk 18X24, Air Filter: MERV 12 Electrostatic Furnace Filter for Home, Captures Viruses & Dust

4.8(513)

$34.99

Filtrete 20" x 20" x 4" Allergen Bacteria and Virus Deep Pleat Air Filter 1550 MPR: MERV 12, Electrostatic, 12-Month Use

4.7(244)

Loved for: Effective Dust Reduction

$35.49

Filtrete 20" x 25" x 4" Slim Fit Allergen Bacteria and Virus Deep Pleat Air Filter 1550 MPR: MERV 12, Electrostatic, Furnace Filter

4.7(237)

$120.96

Filterbuy 18x20x4 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

3.3(8)

$97.96

Filterbuy 18x20x2 Air Filter (4-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

3.6(8)

$60.99

Filterbuy 18x20x2 Air Filter (3-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

4.5(9)

$130.96

Filterbuy 18x20x4 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

4(7)

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$100.98

Filterbuy 18x20x2 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

4.5(9)

$178.98

Filterbuy 18x20x4 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

4(7)

$64.98

Filterbuy 18x20x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

3.3(8)

$148.96

Filterbuy 18x20x4 Air Filter (4-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

3.9(8)

$163.98

Filterbuy 18x20x4 Air Filter (6-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

3.3(8)

$76.98

Filterbuy 18x20x2 Air Filter (6-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

4.3(16)

$38.98

Filterbuy 18x20x2 Air Filter (2-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

4.3(16)

$71.96

Filterbuy 18x20x2 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

4.5(9)

$60.96

Filterbuy 18x20x2 Air Filter (4-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

4.3(16)

$187.98

Filterbuy 18x20x4 Air Filter (6-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

3.9(8)

$309.96

Filterbuy 18x20x4 Air Filter (12-Pack), Pleated MERV 8 Dust Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 3.63)

3.3(8)

$54.98

Filterbuy 18x20x2 Air Filter (2-Pack), Pleated MERV 13 Health Defense Replacement HVAC AC Furnace Filters (Actual Size: 17.50 x 19.50 x 1.75)

3.6(8)

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