What do I need for Pressurized CO2?

YES Some of my stuff has arrived!!!!

So far I have:

-2 glass diffusers
-2 drop checkers
-1 milwaukee regulator thing with 1 bubblecounder
-1 2-port manifold
-1 container of ???

Still needed:
-another bubble counter
-maybe another needle vavle? i dunno lol
-knowledge

You can see the diffusers, drop checker, and me being nerdy, here

And here's photos of the other stuff:
Photo 497.jpg
I assume the suspicous looking container is full of the liquid that goes in the bubble counter.

Photo 498.jpg
Photo 500.jpg

Photo 497.jpg Photo 498.jpg Photo 500.jpg
 
I dunno it's some sort of black smudges.
 
bkb828 sorry to interupt but is it better to by everything seperate or as a kit somewhere???? If there is a good kit can you give me a link?
Thanks
 
About the entire co2 kit regulator and bubble counter and everything you need other then the tank. Is it better to piece it together, buying everything seperate, or is there a place to buy the whole shabang.?
 
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