In , "N. Shane Martin"
empowered us with this mighty blow against the
Patriarchy:

I was in my LFS today and saw this up close. Its a glorified 1 ltr
bottle with a fancy bubble chamber/diffuser. It uses sugar and yeast
just like the DIY setup.

I think you might be thinking of the Nutrafin "natural plant system." The
CO2 Fizz Factory uses tablets.