D8549 Air Cylinder Body Material Aluminum Cylinder Type Extruded Cylinder Repair Repairable Magnetic Piston Magnetic Piston Mounting Type Tapped Hole Sleeve Nut Bore Diameter 4 in Cushion Type Head and Cap Stroke Length 17 1/2 in Inlet Size 1/2 in Spring Retraction Force Not Applicable Cylinder Action Double Acting System of Measurement Inch Body Material Finish Anodized Piston Rod Material Finish Chrome Plated Overall Height 24 1/4 in Maximum Operating Pressure 250 psi