What butane extractor do you recommend?

[pdxcanna]

Tricks of the trade

Came up with these as the correct size to replace the o-rings on the swagelok quick connects(3/8 and 1/2"). Verify for your application 1/2" QC rebuild fkm oring 14x1.78 fkm oring 12.42x1.78 - highest wear fkm oring 9.25x1.78 3/8" QC rebuild fkm oring 10.82x1.78 fkm oring 9.25x1.78 - highest wear fkm oring 6.07x1.78