This Masterforce® 30-gallon, oil-lubricated air compressor features a twin-cylinder, cast iron pump that includes a one-piece cast iron crankcase, a thermally stable, cast iron cylinder body, an aluminum head and machined cast iron valve plate, automotive-style ball bearings, curable stainless steel reed valves, oil level sight glass, easily accessible oil fill, and a 10" cast iron balanced flywheel. The heavy-duty induction motor provides maximum performance and efficiency. This compressor is also equipped with a dual-voltage motor that is wired for a standard 120-volt outlet and may also be converted for a 240-volt application.<br><br>This Masterforce® air compressor carries a 30-day money back guarantee. If you are not completely satisfied with your Masterforce® air compressor for any reason within 30 days from date of purchase, return the complete compressor with your original receipt to any Menards® retail store for a refund - no questions asked. This Masterforce® air compressor carries a three-year limited warranty to the original purchaser. If, during normal use, this Masterforce® compressor breaks or fails due to a defect in material or workmanship within three years from the date of original purchase, Masterforce® agrees to have the compressor repaired or replaced.