Allows the use of a 200/232 BAR Filling Adaptor or charging whip in a 300 BAR DIN Female Valve. Ideal for using 232 BAR Filling Adaptors on a 300 BAR Gun Charging Cylinder.
Just drop the Spacer Ring into the 300 BAR DIN valve outlet with the O-ring facing down, and screw your 232 BAR adaptor straight in. When finished, turn the valve over and the spacer will simply drop out.