Designed to meet the rigorous demands of the cleaning professional, the SIMPSON 4,200 PSI 4 GPM Gas Cold Water Aluminum Water Blaster Professional Pressure Washer frame is crafted of aircraft-grade aluminum, making it lighter in weight than most steel frame pressure washer designs. This gas pressure washer is perfect for contractors who specialize in deck cleaning, wood restoration, paint preparation, graffiti removal and all other professional cleaning services. The gas pressure washer is designed for optimum performance in the harshest environments. Get the job done right with this powerful gas pressure washer! Its high-performance belt drive system ensures smooth operation and reduces vibration, extending the life of the pump and engine. Additionally, the easy-to-access maintenance points make upkeep straightforward, so you can keep your equipment in peak condition and ready for any job. Warranty included. No matter what comes your way next, have this pressure washer to make easy work of prepping and completing projects.