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10x18x1 (3)
10x18x2 (3)
11.25x11.25x1 (3)
11.25x11.25x2 (3)
11.25x11.25x3.63 (3)
11.25x19.25x1 (3)
11.25x19.25x2 (3)
11.25x19.25x3.63 (3)
11.25x23.25x1 (3)
11.25x23.25x2 (3)
11.25x23.25x3.63 (3)
11.5x11.5x1 (3)
11.5x11.5x2 (3)
11.5x11.5x3.63 (3)
11.5x14.5x1 (3)
11.5x14.5x2 (3)
11.5x14.5x3.63 (3)
11.5x15.5x1 (3)
11.5x15.5x2 (3)
11.5x15.5x3.63 (3)
11.5x17.5x1 (3)
11.5x19.5x1 (3)
11.5x19.5x2 (3)
11.5x19.5x3.63 (3)
11.5x21.5x3.63 (3)
11.5x21x1 (3)
11.5x21x2 (3)
11.5x21x3.63 (3)
11.5x23.5x1 (3)
11.5x24.5x1 (3)
11.5x24.5x2 (3)
11.5x24.5x3.63 (3)
11.5x25.5x1 (3)
11.5x25.5x2 (3)
11.5x25.5x3.63 (3)
11.5x26.5x1 (3)
11.5x26.5x2 (3)
11.5x26.5x3.63 (3)
11.5x29.5x1 (3)
11.5x29.5x2 (3)
11.5x29.5x3.63 (3)
11.5x35.5x1 (3)
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11.5x35.5x3.63 (3)
11.75x11.75x1 (3)
11.75x17.75x2 (3)
11.75x17.75x3.63 (3)
11.75x23.75x2 (3)
11.75x23.75x3.63 (3)
11.88x16.88x2 (3)
12.5x17.5x3.63 (3)
12.5x19.5x3.63 (3)
12.5x20.5x3.63 (3)
12.5x21x1 (3)
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12.5x21x3.63 (3)
12.5x23.5x3.63 (3)
12.5x24.5x1 (3)
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12.5x24.5x3.63 (3)
12.75x21x1 (3)
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12.75x21x3.63 (3)
12x22x1 (3)
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12x26.5x1 (3)
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12x30.5x1 (3)
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13.25x13.25x1 (3)
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13.5x13.5x2 (3)
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13.5x17.5x1 (3)
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13.5x17.5x3.63 (3)
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13.5x21.5x3.63 (3)
13.5x23.5x2 (3)
13.5x23.5x3.63 (3)
13.5x24.5x2 (3)
13.5x24.5x3.63 (3)
13.5x26.5x3.63 (3)
13.5x27.5x1 (3)
13.5x27.5x2 (3)
13.5x27.5x3.63 (3)
13.5x29.5x1 (3)
13.5x29.5x2 (3)
13.5x29.5x3.63 (3)
13.5x35.5x1 (3)
13.5x35.5x2 (3)
13.5x35.5x3.63 (3)
13.75x13.75x1 (3)
13.75x19.75x1 (3)
13.75x21.75x1 (3)
13.75x23.75x1 (3)

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Build your own custom AC or furnace filter in a few easy steps
Nominal Size
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Merv Rating

Bulk Quantity Pricing

1-4 6 12 48 72 120
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12x27x2

11.5x26.5x2

MERV 11

$18.99 $17.09 $16.71 $16.14 $14.24 $13.29
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12x27x2

11.5x26.5x2

MERV 13

$20.58 $18.52 $18.11 $17.49 $15.44 $14.41
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12x27x2

11.5x26.5x2

MERV 8

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