Comet 4B Pump Ratio 31:1PerformanceAir inlet Pressure: 30-90 PSI (2.1-6.2 bar)Fluid PressureRange: 930-2790 PSI (64.1-192.4 bar)Max. Cycles Per Minute: 60Max. Rec’d Cycles Per Minute: 20Displacement In3 Per Cycle: 3.9 (63.1 cm3)Cycles Per Gallon (Liter): 60 (15.9)Flow @ 60 Cycles/Minute: 1 GPM (3.8 lpm)Flow @ Rec’d Cycles/Min: 0.3 GPM (1.3 lpm)Noise Level @ 60 PSI: 82 db (A)Standard DutyWall Mount: 41-11475