What next after co2 regulator

[sdu6568]

Hi Bro, can anyone tell me after I have fixed the co2 regulator into the cylinder, what is the next accessories to install all the way until into the water? I am using a non solenoid regulator.

[tawauboy]

after the regulator, you can have a solenoid valve and a needle valve for controlling bubble rate. however, ensure that you have a proper regulator (usually with dual gauges) and not those "throttle valves". following these are the bubble counter and co2 diffuser/reactor.