Brand new DELI-BUCHER Hydraulics. Hydraulic power units for operating single acting hydraulic cylinders. Ideal for many applications including dump trailers, flatbed dumps, forklift stackers, lift gates, pallet trucks, aerial lifts, auxiliary power and many other applications. 12 Volt DC solenoid release valve with check valve for directional control of single acting cylinder. Built-in check and adjustable main relief valve.