I've been in the market for a stem/8 for a while now, and I was wondering what different variations of diffusion points are there on the SG stem/8? I know some tubes come with 6 grids on each arm of the perc and some come with 4. Are there any other variants on the arms or stemline?
theres 2 gridded slits on each arm, so thats 4 points of diffusion on each arm and the bottom stemline always has 6 gridded rows. A couple months ago some came here n there with 3 gridded slits on each arm but I think he decided the 2 were better cus thats how all the tubes have been for a while now.
Ahh, that clears it up. Thanks. The one that I'm thinking about buying has 3 grids on each arm so 6 diffusion points on each arm of the perc... I can't really see how two additional holes on arms would make the airflow or diffusion any worse. Should I look for 2 grid arms or 3 grid arms?
well it just makes it so you need a little more water in the top perc, but if you are getting for a good price all means grab it.