Gas hose adapter

[sco88]

Hi,

I've bought a camping Gaz regulator and hose kit to replace what looks like the original Gok hose and regulator from 2011. Connection to the bottle is straightforward but the connection to the right angled fitting on the water tank looks like it needs some sort of adapter to go from the compression fitting to a hose pigtail. Anybody identified the correct adapter?

Thanks,

Simon.