get a measuring device, measure the inside diameter of the downstem and the outside diameter of the stem.
you will need to take it in metric. you will need to get the correct length.
if i saw it i could tell you what size.

im guessing you just got a graphix style with a 9mm stem.
five0addict Reviewed by five0addict on . question about bong so my dumbass friend broke my bowl for my bong and also the down piece how do i measure these for when he goes and buys me new ones thanks Rating: 5