DESCRIPTION | Dual Cannister Filters with auto filter clean mechanism maintains unit performance during tough construction applications | Variable Suction Dial allows user to tailor suction to specific application or tool requirements | Large 38L Tank Capacity reduces unnecessary unit downtime | Heavy Duty 3mm Polypropylene Head & Tank are Impact & Drop Resistant for Use in Tough Applications | Telescoping handle and large rear wheels allow easy transportation over jobsite | Audible alarm alerts user if a drop in performance occurs | IPX4 rated