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 13 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 19 3/4 IN, MAX