Just connect the gun to your 7 CFM at 80 psi compressor, put on appropriate protection and put the pickup tube in a container of blast media. The Heavy- Duty die cast gun includes a steel nozzle for small compressors. The Suction head draws the abrasive grit into the air stream to minimize surging or skipping. Trigger action lets you blast when and where you want. Upgrade with larger nozzles and air jet for faster performance. Includes gun, 10′ hose, 3 spare nozzles, pickup tube and instructions. Be sure to wear all appropriate safety equipment. Imported.