Hey everyone! I'm new to the bong world and just got a bio a couple weeks ago. I'm trying to buy attachments for it but I have no idea if it's a 14mm or 18mm. How would I find that out? Thanks for the help!
Lmao i know! Unfortunately I don't have one. I feel like an idiot, but which apart is the downstem? Thanks again everyone, I really appreciate it!
Looks like 18 mm to me though I can't be sure. put your bowl down on a piece of paper, draw a circle around the stem part and bring it to a LHS and check if it is 14 or 18, but I would say 18 if I had to guess