Cartridge Filter, For Vacuum Type Shop Vacuum, Fits Vacuum Brand Nilfisk, Fits Vacuum Models AERO 21, AERO 21 INOX, AERO 26, AERO 31 INOX, ATEX - TYPE 22, ATTIX 30, ATTIX 30/40/50, ATTIX 30/40/50 - M-CLASS, ATTIX 40 INOX, ATTIX 5/7 ATEX - TYPE 22, ATTIX 50, ATTIX 7, IVB 7X - ATEX TYPE 22, VL200, Filter Pickup Type Wet/Dry, Filtration Type Standard, Filter Efficiency 98 Percent at 5 micron, Filter Material Paper, Filter Reusability Reusable, Height 7 in, Length 7 1/4 in, Width/Diameter 7 1/4 in