Arborjet Supersonic Air Knife LT VacuumThe Arborjet Supersonic Air Knife LT is a fantastic tool for arboriculture but it sure can make a mess. Fortunately, the Supersonic Air Knife LT Vacuum can hook up next to the same compressor as your Air Knife to enable you to quickly and efficiently move the soil you've loosened. This Product Ships Directly From The Manufacturer. Arborjet Supersonic Air Knife LT Video Lightweight vacuum uses the same compressor as the Air Knife LT system Removes