These new RRA3.5G30E-F17 pumps feature a new rod design, large side cover sight glass, ceramic plungers, high quality high pressure seals, new low-pressure seal with scraper (patented), two piece piston guides, forged brass high efficiency head design and new styling. Flows to 3.5 GPM, Pressure to 3000 PSI, RPM 1750. The RRA3.5G30E-F17 pumps come with 1” and 1-1/8” shaft with Nema 182-184 flanged. Drivers: gearbox, belt-driven, coupling, electric, or gasoline.