The DEWALT 1.6 HP 30 Gal. Single Stage Oil-Lube Vertical Portable Air Compressor is job-site tough and built for the professional. It features automotive style ball bearings, durable stainless steel reed valves, oil level sight glass, easily accessible oil fill and a cast iron balanced flywheel for easy maintenance, durability and convenience. This single-stage, oil lubricated compressor offers a Twin-V cast iron pump with 1-Piece cast iron crank case and thermally stable cast iron cylinder body.