Most regulators I've seen are made to link with another. You would not need to get rid of your original regulator, if it is a dual gauge regulator, unscrew the Hi PSI Side (Tank Pressure gauge) and screw in the second regulator in the spot were the gauge was. You just need a small connecting adapter that is quite inexpensive, it is threaded on both ends. Regulators are mostly all built alike: If looking strait on from front, Top and bottom are Low Side Pressure, top for Gauge, bottom for gas line out, both side connections are Hi side pressure, one for tank connection, other for connection to another regulator, or Hi PSI Tank Gauge. you can keep adding regulators side by side to your heart's (or budgets) delight.
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