How 5 3 Double Solenoid Valve Works what is the difference between PHN PAN u0026 PRN

lot (2) bosch rexroth r900566283 hydraulic directional control valve. To lower 48 States via. Our Internal Inventory Number on this item is O3-16A, BC5-29/12. It is a pait of Bosch Rexroth, Hydraulic Valves.