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Pickup & delivery

air filter 18x20x1

3,031 results

for “air filter 18x20x1”

$41.97

Filter King 21x23x1 Air Filter | 3-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 23 x .75"

$41.13

Filter King 12x30x1 Air Filter | 2-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 12 x 30 x .75"

Filter KingNew at

$41.27

Filter King 16.25x21.25x1 Air Filter | 2-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16.25 x 21.25 x .75"

Filter KingNew at

$120.24

Filter King 13x21x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 13 x 21 x .75"

Filter KingNew at

$167.56

Filter King 15x30.75x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15 x 30.75 x .75"

Filter KingNew at

$110.93

Filter King 21x22x1 Air Filter | 6-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 22 x .75"

Filter KingNew at

$49.25

Filter King 19.5x21.5x1 Air Filter | 3-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 21.5 x .75"

$126.17

Filter King 13.25x13.25x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 13.25 x 13.25 x .75"

Filter KingNew at

$52.45

Filter King 17.5x23.5x1 Air Filter | 5-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 23.5 x .75"

$49.07

Filter King 12x12x1 Air Filter | 12-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.5 x 11.5 x .75"

Filter KingNew at

$56.60

Filter King 13.5x27.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 13.5 x 27.5 x .75"

Filter KingNew at

$138.31

Filter King 11.25x19.25x1 Air Filter | 12-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.25 x 19.25 x .75"

Filter KingNew at

$84.82

Filter King 16x16x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 15.5 x .75"

Filter KingNew at

$116.07

Filter King 16x36x1 Air Filter | 6-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 35.5 x .75"

Filter KingNew at

$69.99

Filter King 8x8x1 Air Filter | 4-PACK | Carbon MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 8 x 8 x .75"

Filter KingNew at

$51.45

Filter King 12x20x2 Air Filter | 5-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.5 x 19.5 x 1.75"

Filter KingNew at

Sponsored

$57.66 - $66.95

Filter King Premium Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA

$55.60

Filter King 15.5x29x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 29 x .75"

Filter KingNew at

$56.66

Filter King 25x30x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 24.5 x 29.5 x .75"

$55.83

Filter King 10x25x1 Air Filter | 6-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 9.5 x 24.5 x .75"

Filter KingNew at

$44.61

Filter King 16.5x19.5x1 Air Filter | 3-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16.5 x 19.5 x .75"

Filter KingNew at

$82.07

Filter King 20.75x21.75x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 20.75 x 21.75 x .75"

Filter KingNew at

$47.24

Filter King 20x20x2 Air Filter | 5-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 19.5 x 1.75"

Filter KingNew at

$57.78

Filter King 16.5x20.5x1 Air Filter | 3-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 16.5 x 20.5 x 0.75"

Filter KingNew at

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