Festool HEPA Main Filter for CT 26/36/48/36 AC/48 AC 205412Details 205412, Festool, HEPA HF CT26 36 48 PTFE, Main filter For CT 36 AC CT 48 AC HEPA main filter designed for use with AutoClean function Replacement High Performance filter optimized for the CT 48 AutoClean. Filters 99. 99% of particles down to 0. 3 micron in size. Includes one filter. Specifications Festool HEPA Main Filter for CT 26 36 48 36 AC 48 AC 205412 AIR FILTRATION 0. 3 Micron APPLICATION Contracting & Remodeling Paint & Decoration Wood