yes it is a store bought stem and piece...

i got a deal on them and that is why i made mini-bong

for 3.50 i got the bowl - the stem - the grommet

whole piece cost me 4.19 cents to make..lol

and i use a glass screen
teacup13 Reviewed by teacup13 on . new homemade mini-bong made this the other night....used a dremmel,lots of water and patience.... hits really well Rating: 5