12 O Ring for Internation A clamp pillar cylinder valves
Correct size and hardness for A Clamp fittings.
These are not BS110 which are not the correct one's
These
are OEM seals from one of the UK's leading trade supplier, not
cheap developing world imports made to low standards. I will refund if you are not entirely happy with the quality of the item.
12 O rings, supplied in a resealable bag.
Supplied in 90 Shore hardness
of nitrile rubber for this high pressure application, (not the softer
and cheaper 70 Shore like others sell)
For use with oxygen and Nitrox applications please ensure you lubricate with an oxygen compatiable grease,
Manufactured in the UK to high quality assured standards.
To ensure 100% reliability of your equipment change every 12 months.