This is a legacy product. Please contact us for the latest version.sales@ocaire.com, CYL, AIR, DBL ACT,5/8-11 M THD, ACTUATOR, CG/CG3 ROUND BODY CYLINDER, MC, 40MM CG OTHERS (COMBO), 2.81088 lb, SeriesDescriptionModelActionNoteVol. no. (for std model)CG1Air cylinderCG1Double acting, Single rodExcept with rubber bumper666