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20x40x4

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20x40x4

19.5x39.5x4

MERV 8

$38.67

$34.80

$34.03

$32.87

$29.00

$27.07

20x40x4

19.5x39.5x4

MERV 13

$38.89

$35.00

$34.22

$33.06

$29.17

$27.22

20x40x4

19.5x39.5x4

MERV 11

$43.77

$39.39

$38.52

$37.20

$32.83

$30.64

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20x40x4

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