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.
Please observe max filling pressure on your gun.