If you want to do bigger stuff. I just converted my old media cabinet over to soda. As long as you have the CFM you can use a regular siphon feed kit with great results.
Two things I learned very quickly. 1) make sure to seal the heck out of the media cabinet, even if you've done it previously. 2) You really need good air filtration. I ended up getting a big 5 horse shop vac to replace my 10 year old 3 horse.