Profile Cylinder DNC-11/4"-20"-PPV Stroke=20 ", Piston Diameter=1 1/4", Piston Rod Thread=3/8-24 Unf-2A, Based On The Standard=Iso 15552 (Previously Also Vdma 24652, Iso 6431, Nf E49 003.1, Uni 10290), Cushioning=Ppv: Pneumatic Cushioning Adjustable At Both Ends.