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

Bulk Quantity Pricing

4 6 12 48 72 120
Quantity

25x25x4

24.5x24.5x4

MERV 11

$36.52 $32.87 $32.14 $31.04 $27.39 $25.56
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25x25x4

24.5x24.5x4

MERV 13

$32.02 $28.82 $28.18 $27.22 $24.02 $22.41
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25x25x4

24.5x24.5x4

MERV 8

$33.44 $30.10 $29.43 $28.42 $25.08 $23.41
Add to Cart