Description:1 (One) RAM direct weld 15k Hydraulic Jack. Eliminate cranking your handle with this 15K Hydraulic unit! Simply push the button! Features integrated counter balance valve that eliminates drift, and retraction when not in use. Great for Dump trailers, Goosenecks, and equipment trailers! Dual Acting power unit required with 3,200psi up, and 1500 psi down. Requires welding to in install.