Vacuum shroud used in dust containment while using gas powered saws for flatwork. 2018 Pro Tool Innovation Awards Finalist , Dust Collection Shroud Category. Fits most gas powered cut off saws and captures up to 90% of concrete dust. Made of aluminum for rugged durability. Connects to a 2” soft hose cuff. Complies with OSHA Silica Rule when used with objective data. Polyethylene sliders to protect the work surface.