Hey FC,
So I'm trying to decide on a bubbler for my log vaporizer. I've narrowed it down to these two off DHgate,
[link removed]
http://m.dhgate.com/product/d020-d-9-inches-bubbler-glass-bong-water/244202146.html#mvdpd-2-9|null:01:r1097941442
Both are 5mm and have the same type of...