These are LOLA DIN inserts. The brand doesn't matter.... they are universal for DIN valves. Push button pressure release. Some have had the "LOLA" decal come off, but are still fully functional. Ideal for plugging DIN tanks with precious gas mixtures. Priced/sold individually. *pictured cylinder is not plugged with one of these specific DIN plugs... it is just an example of how they work/what they are intended for.
