Its like a screen at the bottom of the downstem that brakes the smoke up into smaller bubbles which then filters the smoke better. There really sweet i wish i had one.
420purplehaze420 Reviewed by 420purplehaze420 on . perculated bongs and bubs? ok turns out, the idea of what i thought "perc" meant when people were talking about double perc bongs and shit was completely wrong. i do not get how these work at all, can someone please explain how perulators work and have a picture or something. thanks.:smokin: Rating: 5