Festool CT 36 E AC HEPA Dust Extractor with AutoCleanThe CT 36 AC is designed for use with the Planex and Planex Easy drywall sanders. The AutoClean (AC) automatic main filter cleaning keeps the filter clean and provides a continuously high suction power. Features: AutoClean automatic main filter cleaning system with infinitely adjustable cleaning intervals Antistatic function prevents static developing during work Attachment of Systainer cases via Sys Dock Hose garage and cable windup for greater