For CTL SYS, CTLC SYS, CTMC SYS. Smooth and even more flexible - for perfect gliding over surfaces. The Festool suction hose is smooth and elastic, featuring a smooth outer surface for significantly improved handling, longer lifespan, and higher suction performance. The Cleantec connector sleeve ensures a secure fit on the tool - you decide when the connection is released, not chance. The robust, smooth outer surface prevents the suction hose from snagging. The internally located, highly elastic suction hose offers maximum flexibility. The Cleantec connector sleeve securely connects the suction hose and power tool with a bayonet lock and allows for individual adjustment of the airflow through the continuously adjustable bypass.