Hi all, I have a question that is not for something that's the latest thing out there but I've really been enjoying recently, the CE3 clearos. I love the vapor production and flavor they kick out. The problem I have is the tubes, they crack after awhile and metal the parts are still in usable condition and are rebuildable. I have plenty of resistance and non resistance wire and have the link on how to do the rebuild. I was wondering if anyone has an idea what I could use for a safe reliable replacement tube. The ones I have are just the regular size and not the xl versions. Thanks!