7 meter vac hose for pneumatic tools when you the Festool dust extraction system. This hose is from when 3M was partnered with Festool for the Collision Refinish Festool units so it carries a 3M part number. 3M and Festool have parted ways so you would have to buy this hose as a Festool part now which would be close to $500. Hose is brand new, it's just been through a move so the box was taped up like that. Thanks for looking.