Vacuum shroud used in dust containment while using gas powered saws for masonry work. 2018 Pro Tool Innovation Awards Winner, 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. Rubber feet protect the work surface. Connects to a 2” soft hose cuff. Complies with OSHA Silica Rule when used with objective data.