AIR CYLINDER HOLLAND This Air Cylinder replaces your Holland XA2524R131 and Velvac 100102 1/4 in FTP Port -****** 2-1/2 in OD***** 100PSI Operating Pressure XA35103505, XA351UB, FW1500, FW3500 Series Blind Eye Air Inlet Dimensions are 7.5" center hole on end to center of hole on other end when Compressed When Extended this is 9.5" long from center hole on end to other center of hole on other end. 2 inch Stroke. The Eyelet on hole of ends have a diameter of 0.534 inches. The Total OD of the Cylinder is 2.635". The total cylinder from end to end (not including the eyelets on ends, just the air cylinder) is 4.675" long.