I don't have my welder or manual yet and I'm new to tig and my question is will any electrode work in any torch my 255 has a 9 flex head torch and a 20 standard water cooled torch ?. Before I order I thought I would ask here about what to get. I'm looking at 2% Lanthanated electrodes from Midwest tungsten how does this sound so far, and while I'm being a bother how about filler rod? When I finally get geared up to try this welder out when its a little warmer I will be welding some old dirty aluminum on my dump bed is there a rod suited for this type of welding? Thank you for your imput.

Mark