There had been an older krave bubbler thread, but it seems to be taken down. Same question more or less, where can I find a 32 mm Perc to replace the one that came with the krave. From measuring and researching it seems that it's about 32 mm, but let me know if I'm wrong. Now I've found 29 and 45 mm but no 32. I've read others saying they've got melon Percs that size as well as tree Percs, but I have yet to find any. If someone could steer me in the right direction id appreciate it.