Hey grasscity, I recently dropped my bong slide and the bowl piece just shattered. It's not GONG, it has a rubber grommet. I measured the diameter and it looks like 14 mm. The problem is that GONG and rubber grommets run different sizes and I'm really confused on what will fit my bong. 9mm with a grommet or 12mm with a grommet? I have some picture so if someone could help that would be amazing. Here's some pictures
14mm is a standard size for GonG joints, not grommets. What you have measured to 14mm is the length of the bowl's stem, not the diameter. Sorry, can't really help beyond that but good luck!