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air filter 18x20x1

3,031 results

for “air filter 18x20x1”

$9.99

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

4.5 out of 5 stars with 34 ratings

$9.99

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

4.4 out of 5 stars with 19 ratings

$27.28

Filter King 10x30x1 Air Filter | 2-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9.5 x 29.5 x .75"

Filter KingNew at

$39.19

Filter King 9.75x23.75x1 Air Filter | 2-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9.75 x 23.75 x .75"

Filter KingNew at

$62.66

Filter King 15x25x1 Air Filter | 4-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 14.5 x 24.5 x .75"

Filter KingNew at

$54.31

Filter King 24.5x31.5x1 Air Filter | 3-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 24.5 x 31.5 x .75"

Filter KingNew at

$52.45

Filter King 5.5x29.5x1 Air Filter | 5-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 5.5 x 29.5 x .75"

Filter KingNew at

$46.04

Filter King 12x16x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.5 x 15.5 x .75"

$109.85

Filter King 19.75x22x1 Air Filter | 6-PACK | MERV 13 | HVAC Pleated AC Furnace Filters | MADE IN USA | Actual Size: 19.75 x 22 x .75"

Filter KingNew at

$64.96

Filter King 14.5x19x1 Air Filter | 4-PACK | Carbon MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 14.5 x 19 x .75"

Filter KingNew at

$114.20

Filter King 10x15x1 Air Filter | 6-PACK | MERV 13 | HVAC Pleated AC Furnace Filters | MADE IN USA | Actual Size: 9.5 x 14.5 x .75"

Filter KingNew at

$75.06

Filter King 17.25x26x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.25 x 26 x .75"

Filter KingNew at

$70.17

Filter King 19x21x1 Air Filter | 4-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19 x 21 x .75"

Filter KingNew at

$154.50

Filter King 12x36x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.5 x 35.5 x .75"

Filter KingNew at

$93.26

Filter King 17.25x19.25x1 Air Filter | 6-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.25 x 19.25 x .75"

Filter KingNew at

$74.35

Filter King 13x25x1 Air Filter | 4-PACK | Carbon MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 12.5 x 24.5 x .75"

Filter KingNew at

Sponsored

$237.22

Filter King 14x36x1 Air Filter | 12-PACK | MERV 11 | HVAC Pleated AC Furnace Filters | MADE IN USA | Actual Size: 13.5 x 35.5 x .75"

Filter KingNew at

$175.56

Filter King 20x22x2 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 21.5 x 1.75"

Filter KingNew at

$141.18

Filter King 23.25x29.25x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 23.25 x 29.25 x .75"

Filter KingNew at

$137.48

Filter King 16.5x22x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16.5 x 22 x .75"

Filter KingNew at

$74.03

Filter King 16.5x21x1 Air Filter | 4-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16.5 x 21 x .75"

Filter KingNew at

$52.49

Filter King 14.5x19.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 14.5 x 19.5 x .75"

Filter KingNew at

$177.82

Filter King 21x22x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 20.5 x 21.5 x .75"

Filter KingNew at

$73.24

Filter King 6x12.25x1 Air Filter | 4-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 6 x 12.25 x .75"

Filter KingNew at

Sponsored

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