The 4710W 4.7 Gallon 1.0 Hp Quiet Air Compressor is ideal for Small Business, DIY and Homeowner customers. The Oil-Free Dual Piston Pump System is engineered for high performance and durability. The 4.7 Gallon Steel Air Tank is Lightweight (35 lbs) and very easy to transport. The CAT-4710W Air Compressor has a Oil-Free Dual Piston pump designed to have a life cycle before wear of 1000 Plus hours. The Oil-Free pump allows for use in a variety of temperatures and uneven terrains.