This is for a Professional Series twin cylinder Sears Craftsman air compressor. This is a robust industrial model with Cast Iron cylinders for longer life. It is also powered by a 230-volt motor which draws less amps and is more efficient. This was considered a 2-horsepower motor back then, which is equivalent to a 6-horsepower motor today. It is in excellent condition and runs great. It can provide up to 125 psi. It has a 20-gallon tank capacity. I also have a users and parts manual with it. Only asking $325. If interested, please message me at this ad or call my land line number listed in this ad. Thanks for your interest!