Features: 1. Forged brass head 2. Die casting crankcase 3. C&U BALL Bearing 4. Germany PARKER seals 5. Ceramic coated plungers 6. Inlet: NH3/4inch 7. Outlet: 3/8inch Male thread 8. Max temp. 60C/140F Specification: Maximum Volume:3.1gpm Max. Discharge Pressure:3000 PSI Maximum Pump Speed:3400 RPM Shaft Diameter:3/4" Horizontal Package includes: 1X Pressure Washer Pump