I have nice sight gauges on all my keggles and am looking to build a few systems for my buddies too. I originally got them at the LHBS a long time ago but have since seen the same tube and guard on coffee pots at Tulle's. I really like mine because they have a nice guard and a stand off and not just a naked tube. Since I'll be buying a few of them, I'd like to try to find the actual manufacturer and not pay the HBS markup.
Here is what the tube looks like:
Obviously people are finding them and making their own setups to resell. Any ideas on where to source them? It's a glass tube in a chrome sleeve with a vented cap on the top and 1/8 MPT on the bottom.
Here is one on ebay but with more stuff involved:
Thanks in advance for the help.