Maximum versatility without the restriction of cords. 300CFM of power to keep airborne dust to a minimum when grinding. Includes 20' 2 1/2" diameter hose and 4' floor wand and connection kit. Heavy duty self-locking casters and reinforced fiberglass housing. Steel propane tank is standard. 28 sq ft MicroClean filter. HEPA operation. Green cleaning certifications: EPA, CARB, LEED, CE, GS-42.