i cant help you with figureing out if it will fit. But since its glass on glass no your not going to need a gromet.
420Toaker Reviewed by 420Toaker on . quick question reguarding bongs whatup guys. so recently my downstem broke and im gnoa invest in a new one when i saw this http://www.everyonedoesit.co.uk/online_headshop/Molino_Precoolers__Reversed.cfm?iProductID=3356 i want it really bad but im afraid the downstem wont fit in the hole in my bong. it says "standard joint size, 14.5cm" but which part of the downstem is 14.5 cm? im really confused. also do you just put the downstem stiraight into the bong hole or is a grommet required even tho its glass on glass. will a Rating: 5