Anyone ever used this?

[squirrelrabbits]

Aqualine Buschke CO2 German Complete system without bottle. Kit includes CO2 pressure regulator, CO2 bubble counter, CO reactor, cleaning brush, and connection tube.


http/www.ah-supply.com/browseproducts/Aq...CO2-System.HTML

i am wondering how large of an aquarium this will work for.