300 Bar EN-144-1 type DIN fitting charging adaptor, may also be used with DIN to A Clamp convertor for use with INT type 232 Bar cylinder valves. Designed for use with standard European type SCUBA Diving Cylinders fitted with a 300 Bar DIN valve. Supplied with hose and fittings, to fit most types of air guns which are fitted with 1/4" or 1/8" BSP threaded hoses, or custom hoses that require a 1/4" or 1/8" BSP male fitting. Integral Pressure Gauge and Pressure Purge Button.