Transfill Adapter BS-341-3 to CGA-540

This adapter allows the connection of CGA-540(M) transfiller equipment to a BS 341-3 (G 5/8 -RH) British Gas cylinder.
Note: The BS 341-3 is also the same as the Australia Type 11 and French NF-F for Oxygen (22.91 x 1.814).