Prince PMC-5412 Double-Acting Welded Hydraulic Cylinder, Crosstube Mounting, Chrome Finish, Cast Iron, 2-1/2" Bore, 12" Stroke, 1-3/8" Rod Diameter, 3/8" Thread, 3/8" NPTF Port Actuator for converting hydraulic power into mechanical motion Welded construction for large loads Ductile iron piston and gland for strength and durability Urethane u-cup seal and wiper ring in gland for resistance to contaminants Maximum operating pressure of 2,500 psi