18x24x4
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18X24X4 MicroMAX Air Filter – MERV 11, Galv Frame, Koch 120-732-005
$509.79 per 3 pcs ($169.93 each) -
18X24X4 MicroMAX Air Filter – MERV 13, Galv Frame, Koch 120-731-005
$624.45 per 3 pcs ($208.15 each) -
18x24x4 MicroMAX Air Filter – MERV 13, Single Header, Koch 120-721-005
$857.13 per 3 pcs ($285.71 each) -
Koch 102-680-027 Antimicrobial Treated Air Filter – MicroSafe, 18x24x4
$161.88 per 6 pcs ($26.98 each) -
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Koch 102-500-127 – 18x24x4 High-Capacity Heavy-Duty Air Filter, MERV 11
$219.36 per 6 pcs ($36.56 each) -
Koch 102-714-127 – 18x24x4 High-Capacity Heavy-Duty Air Filter, MERV 13
$597.00 per 6 pcs ($99.50 each) -
Koch 102-701-127 – 18x24x4 High-Capacity Heavy-Duty Air Filter, MERV 8
$204.90 per 6 pcs ($34.15 each) -
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