I have an absolutely ludicrous amount of cryostat tubing that's good for 48th barrels (Actually, blast tubes!). My Dad "procured" this stuff from work. This tubing is of the same type used for cooling electronics as well as for other purposes. I also have some finned tubing, the same stuff but with steel(?) ribbon welded around the entire length of the tube, forming cooling gilles. Hard to explain, but basically it looks like O2 hose, probably good for 32nd or larger models.
If anyone is interested, email me and maybe we can work something out. All I would ask is postage. It may take awhile, having lotsa work done on the house and can't find a dang thing at the moment, but such is life! LOL
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