20x20x4 Filters
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20x20x4
20x20x4 filter – MERV 8
$109.00Box of 6 filters
These filters measure exactly (19 1/2″ x 19 1/2″ x 3 3/4″)Quick View -
20x20x4
20x20x4 filter – MERV 11
$153.00Box of 6 filters
These filters measure exactly (19 1/2″ x 19 1/2″ x 3 3/4″) -
20x20x4
20x20x4 filter – MERV 13
$240.00Box of 6 filters
These filters measure exactly (19 1/2″ x 19 1/2″ x 3 3/4″
