ALL CYLINDERS TESTED WITH COMPRESSED AIR and all work. No leaks. Cylinder No. 1 50.00. No. 2 50.00. No. 3 30.00. I tried to repurpose No. 3 and you can see in pictures I cut part of ear off for clearance. Also drilled hole in thread area. All cylinders are the same. Stroke is 7". Open length from center of mount to end of shaft 17 1/4". Closed11 3/4". Rod 1 1/4". Tube 2 3/4". PRICES ARE FIRM!!!!!!