WE ARE THE MANUFACTURER - NOT A RESELLER 4" Bore (Outer Dia.: 4.5"), 20" Stroke, 2" Rod Dia. Retracted 30.25", Extended 50.25", Welded Hydraulic Cylinder Rated Pressure 3500 PSI, Column Load 37,000 LBs, Ports SAE 8 (O-ring boss), Double Acting Hydraulic Cylinder Universal Hydraulic Cylinder with Clevis Ends, Pin holes 1". Perfect replacement any agriculture equipment. Magister Hydraulic Cylinder with 2 years Warranty. Made in Europe