I want this for Nitrox, and I read that Luxfer deliver their tanks 100% oxygen ready, So when you send it to me, do I have to get it oxygen clean again?
The tanks and valves ship oxygen clean from the factory. You do not need to have a tank cleaned for oxygen unless you contaminate the tank by using regular air. Just take you new tank to a dive shop and they'll inspect it, put the valve on, place a VIP sticker on it, and they'll fill it for you.
No, it is already oxygen cleaned from the manufacturer. It is sealed with an Oxygen compatible plug.