AP8N - M26 Male / 5/8" BSP Female Cylinder Valve Adaptor for gas-filling when travelling outside the EU and/or adapting an M26x2 cylinder valve to accept a 5/8” BSP first stage, compressor connector or 02 whip

New European Standard for oxygen connection - applies from August 2008

A new European standard came into force from August 2008 specifying that the connection to a cylinder containing any gas with an oxygen percentage greater than 22% should be a different thread (M26x2) than the BSP thread standard on air cylinders