1.Efficient control of greater hydraulic powers without increasing solenoid power consumption. 2.Installed cost and space savings from higher power/ weight and-size ratio. 3.Reduced internal leakage reduces power losses, increases system efficiency: the result of improved manufacture of spools and bores. 4.Installation flexibility resulting from choice of numerous combinations of solenoid connectors and locations. 5.Multi-fluid capability without need to change seals. 6.Higher sustained machine productivity and higher up-time because of proven fatigue life and endurance, tested over 20 million cycles.