18x18x2
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Koch 102-082-007 – 18x18x2 Extended Surface Pleated Air Filter, MERV 11
$279.72 per 12 pcs ($23.31 each) -
Koch 102-092-007 – 18x18x2 Extended Surface Pleated Air Filter, MERV 11
$233.16 per 12 pcs ($19.43 each) -
18x18x2 High-Capacity Multi-Pleat Air Filter – XL8, Koch 102-032-007
$197.04 per 12 pcs ($16.42 each) -
18x18x2 Pleated Air Filter – Semi, Multi-Pleat, XL8, Koch 102-042-007
$178.68 per 12 pcs ($14.89 each) -