24x18x4
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24x18x4 MicroMAX Air Filter – MERV 14, Galv Frame, Koch 120-730-005
$626.58 per 3 pcs ($208.86 each) -
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24x18x4 MicroMAX Air Filter – MERV 11, Single Header, Koch 120-722-005
$831.99 per 3 pcs ($277.33 each) -
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24x18x4 MicroMAX Air Filter – MERV 14, Single Header, Koch 120-720-005
$837.06 per 3 pcs ($279.02 each) -
Koch 102-500-027 – 24x18x4 Extended Surface Pleated Air Filter, MERV 11
$169.20 per 6 pcs ($28.20 each) -
Koch 102-499-027 – 24x18x4 Extended Surface Pleated Air Filter, MERV 11
$145.62 per 6 pcs ($24.27 each) -
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24x18x4 High-Capacity Multi-Pleat Air Filter – XL8, Koch 102-701-027
$144.60 per 6 pcs ($24.10 each) -
