Guardair air-spade extensions provide accessibility in deep holes or trenches for soil evacuation tasks. These units feature high-pressure rated, insulated inner air hoses and are enclosed by a non-conductive, rigid fibreglass outer tubing for thermal protection. They are integrated with brass sleeves and knurled threads for a superior grip and a positive sealing, respectively and an adjustable rubber dirt shield for protection against flying debris. Choose from a wide range of these extensions available in lengths ranging from 24 to 60 inches on Raptor Supplies.