Vortexx 4000XG Pressure Washer 4000 PSI 4.0 GPM Professional Honda GX390 VX30406GVortexx 4000XG Pressure Washer 4000 PSI 4. 0 GPM Professional Honda GX390 VX30406G If your Vortexx will be on the job all day, every day, you may want to consider a Pro+ Gear Drive 4000 PSI Pressure Washer. This option will cut the pump speed in half and extend intervals between servicing the pump's internal working parts. Also check out some of our key accessories that make a day on the job a bit shorter. For example, our hose reels will make coiling