3 Stage Piston Design 4 Way Valve Maximum Pressure 10,000 psi Setting Easy Access Pressure Setting Quiet - Meets OSHA Standards Max Pumps Have 4-Tool Ports Mini Pumps Have 1-Tool Port Heavy Duty 25 ft. (7.62 m.) Remote Liquid Filled Pressure Guage psi / bar 15ft. (4.57 m.) Hose Pair