The Eagle Pro ESP series is constructed of high strength alloy steel to maintain durability. The hardened and chromed piston extends the life of the cylinder through the reduction of wear and corrosion damage. Retraction times are fast due to heavy-duty straight pull return springs. Accidental over-extension is prevented with a built-in safety valve. The ESP series features an enamel finish that increases protection from corrosion. A dust cover is included with the rugged, EAB-201A female coupler.