A washable, reusable filter bag that replaces the disposable bags in your Festool extractor. Empty it, shake it out and carry on — instead of buying another pack every few weeks.

Three layers of high-strength polyester fleece with an inner microfleece membrane and a non-stick inner face, so dust drops out cleanly rather than clinging to the walls. The collar is cut to fit CTL SYS, CTLC SYS I-Basic, CTLC SYS HPC 4.0 I-Plus, so there is no gap for fine dust to slip past.

Made for dry waste: dirt, wood chips, sawdust and general site debris. It will cope with plasterboard and concrete dust, but those shorten its life considerably.