Nitrous Pressure Gauge Question

Looking for the easiest cheapest setup....

A small 1.5" gauge on the bottle would do just fine for me. How would a gauge like this one (http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=120432&prmenbr=361) mount? What are yall's recommendations?

Thanks

I sent you a PM.

It comes with the adapter that screws onto your bottle, then the gauge screws into the side of the adapter and your N20 line goes onto the front of the adapter. I have that same gauge.