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10x18x1 (0)
10x18x2 (0)
11.25x11.25x1 (0)
11.25x11.25x2 (0)
11.25x11.25x3.63 (0)
11.25x19.25x1 (0)
11.25x19.25x2 (0)
11.25x19.25x3.63 (0)
11.25x23.25x1 (0)
11.25x23.25x2 (0)
11.25x23.25x3.63 (0)
11.5x11.5x1 (0)
11.5x11.5x2 (0)
11.5x11.5x3.63 (0)
11.5x14.5x1 (0)
11.5x14.5x2 (0)
11.5x14.5x3.63 (0)
11.5x15.5x1 (0)
11.5x15.5x2 (0)
11.5x15.5x3.63 (0)
11.5x17.5x1 (0)
11.5x19.5x1 (0)
11.5x19.5x2 (0)
11.5x19.5x3.63 (0)
11.5x21.5x3.63 (0)
11.5x21x1 (0)
11.5x21x2 (0)
11.5x21x3.63 (0)
11.5x23.5x1 (0)
11.5x24.5x1 (0)
11.5x24.5x2 (0)
11.5x24.5x3.63 (0)
11.5x25.5x1 (0)
11.5x25.5x2 (0)
11.5x25.5x3.63 (0)
11.5x26.5x1 (0)
11.5x26.5x2 (0)
11.5x26.5x3.63 (0)
11.5x29.5x1 (0)
11.5x29.5x2 (0)
11.5x29.5x3.63 (0)
11.5x35.5x1 (0)
11.5x35.5x2 (0)
11.5x35.5x3.63 (0)
11.75x11.75x1 (0)
11.75x17.75x2 (0)
11.75x17.75x3.63 (0)
11.75x23.75x2 (0)
11.75x23.75x3.63 (0)
11.88x16.88x2 (0)
12.5x17.5x3.63 (0)
12.5x19.5x3.63 (0)
12.5x20.5x3.63 (0)
12.5x21x1 (0)
12.5x21x2 (0)
12.5x21x3.63 (0)
12.5x23.5x3.63 (0)
12.5x24.5x1 (0)
12.5x24.5x2 (0)
12.5x24.5x3.63 (0)
12.75x21x1 (0)
12.75x21x2 (0)
12.75x21x3.63 (0)
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12x26.5x1 (0)
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12x30.5x1 (0)
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13.25x13.25x1 (0)
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13.5x13.5x2 (0)
13.5x13.5x3.63 (0)
13.5x17.5x1 (0)
13.5x17.5x2 (0)
13.5x17.5x3.63 (0)
13.5x19.5x2 (0)
13.5x19.5x3.63 (0)
13.5x21.5x3.63 (0)
13.5x23.5x2 (0)
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13.5x26.5x3.63 (0)
13.5x27.5x1 (0)
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13.5x29.5x1 (0)
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13.5x29.5x3.63 (0)
13.5x35.5x1 (0)
13.5x35.5x2 (0)
13.5x35.5x3.63 (0)
13.75x13.75x1 (0)
13.75x19.75x1 (0)
13.75x21.75x1 (0)
13.75x23.75x1 (0)

Air filters

Nominal Size
Actual Size
Merv Rating

Bulk Quantity Pricing

1-4 6 12 48 72 120
Quantity

18x36x1

17.5x35.5x1

MERV 8

$14.67 $13.20 $12.91 $12.47 $11.00 $10.27
Add to Cart

18x20x2

17.5x19.5x2

MERV 13

$18.29 $16.46 $16.10 $15.55 $13.72 $12.80
Add to Cart

18x20x2

17.5x19.5x2

MERV 8

$13.97 $12.57 $12.29 $11.87 $10.48 $9.78
Add to Cart

18x20x4

17.5x19.5x3.63

MERV 8

$23.91 $21.52 $21.04 $20.32 $17.93 $16.74
Add to Cart

18x24x1

17.75x23.75x1

MERV 13

$16.92 $15.23 $14.89 $14.38 $12.69 $11.84
Add to Cart

18x25x1

17.75x24.75x1

MERV 8

$10.90 $9.81 $9.59 $9.27 $8.18 $7.63
Add to Cart

18x24x4

17.5x23.5x3.63

MERV 11

$18.77 $16.89 $16.52 $15.95 $14.08 $13.14
Add to Cart

18x30x2

17.5x29.5x2

MERV 8

$16.26 $14.63 $14.31 $13.82 $12.20 $11.38
Add to Cart

18x18x2

17.5x17.5x2

MERV 13

$18.29 $16.46 $16.10 $15.55 $13.72 $12.80
Add to Cart

18x18x1

17.75x17.75x1

MERV 13

$16.92 $15.23 $14.89 $14.38 $12.69 $11.84
Add to Cart