Fein TII1MCRN 1 Micron Pleated Filter Turbo I, II, III is designed to provide superior filtration for all FEIN vacuums, capturing even the finest dust particles such as drywall and sheet rock. This 1 micron filter works effectively with the turn screw TII3001 and flange TII3002, ensuring a secure fit and optimal performance. When paired with the FEIN vacuum bags, it exceptional dirt and dust filtration, helping to extend the life of your vacuum motor. This filter is i for maintaining a cleaner environment and enhancing the efficiency of your vacuum system. Model Number: TII1MCRN