I've been busy getting parts for my son's aquarium. So far I purchased everything locally. I picked up a brand new 60p, stand, and led lights for $200. I also came across a deal for two CO2 tanks and regulator. The cost for a 10 lb. Aluminum tank, a 5 lb. Aluminum tank and a regulator was for $100 total.
The regulator needs the high pressure gauge and the low pressure gauge. It also needs a needle valve. I will get the ideal needle valve but I'm stuck on size and I don't know where to order the gauges from. Here are the pics of the regulator, nothing fancy but it works. Any help is appreciated: