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Reviews (1)
May 31, 2017
Did not work...
1 of 1 found this helpful o rings do not seal proper. Sucks air in from the backside of cup, and causes pinholes. I knew these were cheap, but they don't even remotely come close to working as described. Gas lenses and collets are typical cheap Chinese quality, those will still be used with a standard cup, so not a total loss.