Cartridge Filter, For Vacuum Type Shop Vacuum, Fits Vacuum Brand Nilfisk, Filter Pickup Type Wet/Dry, Filtration Type Standard, Filter Efficiency 98 Percent at 5 microns, Filter Material Paper, Filter Reusability Reusable, Height 7 in, Length 7 1/4 in, Width/Diameter 7 1/4 in. This item has been restricted from sale in the following state (s): []