Enerpac RC Series hydraulic cylinders set the industry standard for general purpose cylinders. The golden ring absorbs eccentric loading without galling cylinder parts. Collar threads, plunger threads and base mounting holes enable easy fixturing. You will enjoy a cylinder design for use in all positions, and a high strength alloy steel for durability. Nickel plating is available on most hydraulic cylinder models. This cylinder features heavy duty return springs, and a baked enamel finish for increased corrosion resistance. The CR-400 coupler and dust cap are also included on all models.