Cartridge Filter For Vacuum Type Shop Vacuum Fits Vacuum Brand Guardair Fits Vacuum Models BH4000 CS3000 MV2000 MV2000NED. CS3000NED N051M N051MC N101DC N101SC Filter Pickup Type Wet/Dry Filtration Type Standard Filter Efficiency 77 Percent at 0.8 micron Filter Material Paper Filter Reusability Reusable Height 7 1/4 in Length 8 1/8 in Width/Diameter 7 1/4 in