BAPL-3154 has a description of P317RX 3.7GPM 3000PSI 1800RPM

• Maximum Flow: 3.7 GPM
• Maximum Pressure: 3000 PSI
• Maximum Pump Speed: 1800 RPM
• Minimum Horsepower Requirements: 7.7 bhp (11.5 hp for gas engines)
• Shaft Diameter: 24mm
• Plunger Diameter: 18mm
• Stroke: 10.6mm
• Maximum Temperature: 160 Degrees F
• Inlet Port: Dual 1/2" BSP
• Discharge Port: Dual 3/8" BSP
• Weight: 16 lbs.

WARNING This product can expose you to chemicals, including Lead which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.  As alarming as the proposition 65 warnings may appear, you can rest assured that the products we sell remain the same as in the past. We encourage normal hygiene and discourage placing any of our products in your mouth, as they are not intended for human consumption.