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28x30x4

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4	6	12	48	72	120

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28x30x4

27.5x29.5x4

MERV 8

$31.04

$27.94

$27.32

$26.38

$23.28

$21.73

28x30x4

27.5x29.5x4

MERV 13

$36.60

$32.94

$32.21

$31.11

$27.45

$25.62

28x30x4

27.5x29.5x4

MERV 11

$31.15

$28.04

$27.41

$26.48

$23.36

$21.81

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28x30x4

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