For connection of a Festool compressed air sander to a Festool mobile dust extractor or energy box,temperature resistant to +70 C.Festool’s Antistatic hose design helps you work cleaner by preventing dust from accumulating on the exterior of the hose. You’ll also work more efficiently with a system that prevents clogging due to particulate build up inside the hose. Work more safely by preventing static discharge and shocks. A durable, pliable design withstands heavy use and prevents kinking for longer service life and more efficient work.