Federico Gribaudo

I'm New Here
Hello! I'm bulding a RV7 and I don't know what size the smoke tank choose. I'm looking the smoke system helper but I don't know whether to choose the 4.25 gallon or 7.5 gallon hidden tank. Can anyone help me? Thanks!
 
I just asked this question a few days ago. That company owner has apparently fallen on hard times and is taking order but not shipping anything. I decided to steer clear of it.