I am looking to get the pressurized CO2, thinking to build a regulator and I might be able to save some money. I am getting confused that which regulator to choose and where to buy. I see some victor, Airgas, Air Products, Matheson regulators on (no ebay links allowed) I am not sure which one is dual stage or single stage.
Please help me to choose a dual stage regulator.
If you have one or any resources where i can get one would work for me.