Apologies if this isn't the best place to ask, but I'm trying to track down a couple of Columbus XCr tubes stateside. All the current distributors appear to be out, so if you have these tubes and are willing to sell, please send me a PM.

  • XCr, 31.7mm, .6/.4/.6
  • XCr, 35mm, .7/.5/.7


Thanks in advance,

Matt Nelson
SaltAir