I have ordered the Dwyer magnehelic gauge "2100" annd the Dwyer flow meter "RMB-50",and i have drawing of the basic hook up. But would like to see a pic of a flow meter insides and any suggestions.
oyeah i will be using the propane system.

707 Specialties might have something on his site, there is a link in the NAMBA site as I don't have his handy.
I've seen them mounted in anything from cheap plastic tool boxes to what looks more like cabinetry.

here's what Ron talkin' bout just for an idea, sorry i can't show the back part, kinda lazy to unscrew.

Here are some pics of my flow meter. It was made by Tidewater Engineering and I bought it from a guy that owned a hobby shop.

I was going to buy one from 707 but he was sold out until the first of next year,so thats why i,m building one and with these pics and the infomation i have it should give me a good start.
Thanks to ALL