HYDROLINE MODEL: N5N-6X20-N410-S-H-R-1-1. SERIAL #193052403-1. RATED TO 3000 PSI. 6” BORE; 4” DIAMETER ROD; 20” MAX STROKE. MOUNT: M X 2 EXTENDED TIE RODS CAP END 4.5”. #10 ROD END SPLIT COUPLING. 10” ROD EXTENSION. PORTS: -16. CAST IRON PISTON SEAL RINGS. DOUBLE-ACTING. 7.5” X 7.5” FLANGES. OVERALL LENGTH RETRACTED: 42”. APPROX 750 POUNDS. QTY 4. ITEM #2551.