Procon® Rotary Vane Fluid PumpAll pumps have a nominal speed of 1725 RPM a maximum di scharge pressure of 250 PSI clockwise rotation and an adjustable relief range (if available). Series 3Manufacturer No: 113E100F31BA170Mount: Bolt-OnDrive Coupler: Single Flat S/SFlow Rate (GPH): 100 GPHSeal: NitrileRe lief Setting: 170 PSICapacity: 15 to 140 GPHNominal Speed: 1725 RPM Max. Discharge Pressure: 250 psiRotation: ClockwiseDry Weight: ~2.5 lbsSelf-Priming (water): 6 ft. max. liftSeries 3 Pumps have a stainless steel body and is design for operating flow rates of 15 GPH to 140 GPH. This series is the same as t he Series 1 pumps but does not include the integral strainer.