Need Link to Good Needle Valve & Bubble Counter

[Dopey]

I need a needle valve to add to my CO2 tank to prevent dumping in case I ever (again) an dumb enough to let my CO2 run dry.

Can anyone give me a link to where I can purchase one of these?


I would also like to add an easy to view bubble counter at this time. Any advice on a good one of these?

Thanks.

[bobalston]

Take a look at my web site for info on needle/metering valves.

Bob

http://members.cox.net/tulsaalstons/AquaticPlants.htm#High%20Pressure%20CO2