https://www.ebay.com/sch/i.html?_nkw=3M+V+Bank+Air+Filter&_sacat=0&_dmd=2

3M V-Bank Air Filter

Regular price
$212.00
Sale price
$145.00

V-Bank Air Filter, Without Gasket, Nominal Filter Size 24x24x12, Nominal Height 24 In, Nominal Width 24 In, Nominal Depth 12 In, Filter Efficiency 85 Percent, MERV 14, Air Flow 492 fpm, Initial Resistance 0.21 In. WC, Final Resistance 1.5 In. WC, Filter Pack Enclosure Plastic Frame, Material Fiberglass, Max. Air Flow 492 fpm, Media Area 193 sq. ft, Max. Temp. 150 Degrees F, Standards UL 900 Class 2, ANSI/ASHRAE/ASHE Standard 170 - 2008, Product Has MERV Rating of 13 or Higher