Heavy-duty NorthStar® compressors are built with durable cast iron V-twin pump with cast iron heads for good heat dissipation and no transfer of heat between cylinders. Belt drive oil-lubricated pump runs quietly and delivers long pump life. 20-gallon vertical tank is ASME certified. Built tough enough for commercial shops. Enough capacity to operate an air ratchet, impact wrench, siphon feed sand blaster, nibbler, nailer, air brush, touch-up spray gun and more. Includes portability kit with flat-free tires.