10 US Ton Capacity. 4″ Stroke Connector Type: 3/8″ NPT CR-400 quick hydraulic coupler with dust cap Max Pressure 10,000 PSI. Single acting – Pressure extend, Spring return. Hard black oxide plated high carbon steel ram. Proprietary heat-treated steel shell. This hydraulic jack cylinder has the advantages of small size, suitable for narrow space position. A great helper for riggers, fabricators, welders, and automotive body and frame shops in electric power, chemical industry, steel, Bridges, machinery, and other industries.