Hydraulic monoblock directional solenoid control valve 1 spool, 13 gpm with switch this item is in the category business & industrial\hydraulics, pneumatics, pumps & plumbing\valves & manifolds\other valves & manifolds. Are you operating a hydraulic cylinder or a hydraulic motor? Summit Hydraulics specializes in and offers a wide range of quality, durable hydraulic couplers and valves to the construction, agricultural and forestry industries.