OMS 300 Bar DIN Single Outlet 1st Stage A13110601 Unbalanced 1st Stage Regulator with 4 3/8� UNF Low Pressure & 1 7/16� UNF High Pressure outlet Ports. With 300 Bar G5/82 DIN Screw Thread Cylinder Attachment. Supplied complete with Female DIN Thread Protection Cap. Weighs 0.5Kgs.