This economical 7 Roller Delavan RollerPRO 7900C Roller Pump is optimal for farm, commercial, and industrial uses. With a sturdy cast iron body and a 1" female NPT side port, this industrial pump works via a PTO shaft, an electric motor, or a gas engine. When powered, the fluid will enter the intake area at a constant rate, then the shaft and rotors will pump the liquid out through the outlet area. The 7900C roller pump has solid shaft that measures 15/16" and rotates in a counter-clockwise direction. These agricultural water pumps have a maximum flow of 22.5 GPM and a maximum operation speed of 850 RPM. The maximum fluid temperature is 140 ° F. It only takes a wrench to install, with no plumbing disassembly required. Delavan designs, engineers and manufactures a wide variety of roller pumps to meet the widest ranges of low-volume, moderate-pressure pumping applications. To ensure the best performance for your investment, we incorporate such features as "Ultra" rollers, heavy-duty sealed bearings, Viton seal rings, stainless steel shafts and rotors, and close tolerance machining. All are standard. Max flow: 22.5 GPM Max pressure: 200 PSI Max speed: 850 RPM Port sizes: 1" NPT Pump shaft rotation: CCW