PROPORTIONAL FLOW DIVIDER/COMBINER New. Prince RD-1550 Divides input flow into two nearly equal output flows. Also combines return flow near equally. Pressure compensation means dividing and combining are nearly equal regardless of load variations. Also for hydraulic motors that operate at same speed. NOTE: These are not for synchronizing hydraulic cylinders as they do not lock mid stroke and accuracy is not adequate. Use a Rotary Flow Divider for that application.