Cylinder Valve DIN insert to fit most Cylinder Valves & Manifolds with G5/8” 232 Bar DIN EN-144-3 type outlets. Simply converts any 232 Bar DIN fitting for use with an INT-A-Clamp type Regulator 1st Stage. Insert in to the DIM recess on a cylinder valve in seconds, tighten with a suitable 8mm Allen Key and easily removed to rapidly convert the cylinder valve back for use with DIN type threaded regulators. O-Rings are manufactured from supreme quality Viton for use with Nitrox – Oxygen enriched breathing air. Perfect for use with Beaver’s entire range of 232 Bar Cylinder Valves as well as all other types with an EN-144-1 compatible gas outlet.