BTS 300 Bar M18 Top Handled Cylinder Valve A16310647 Top Handled - Comptec Style 300 Bar Cylinder Valve with M18 X 1.5 Male Cylinder Thread with Female 300 Bar M25 X 2 EN-144-1 DIN G 5/8 Outlet for use with Cylinders with M18 X 1.5 Thread & Regulators with 300 Bar EN-144 DIN G 5/8 Male Thread. Supplied as standard with Extra-Long Valve Handle which ensures ease of use even when wearing the thickest types of Diving Gloves. All parts are Nitrox compatible with Viton O-Rings etc. The cylinder valve will require cleaning for Nitrox use in an O2 clean environment before use with Oxygen enriched gas.