Yo yo yo, First post on here so forgive any ig'nance or foolishness. I broke the crappy herbal tank on my g pen, and I am looking for a replacement tank. Not for herbs, but for oils. I encountered the Medicali Earl tank and the Mediglobe tank and they seem to be of excellent quality, but I can't find the threading information. G pen has a 601 thread, so if any of you guys know the threading on those two medicali products, your help would be greatly appreciated.