Its made out of a 4" X 8" length of type "L" copper water pipe,
2, 4" copper caps, 1, brass, double male garden hose connector,
1 brass hose cap,
1 short piece of 1/8" copper tube to make a vent line,
1, female 1/4" adapter,
1, SPB fuel valve.
1, roll of no lead solder,
1, small can of soldering flux.
I suggest you use a good jet type torch head and Map gas.
I first fitted all the parts together cleaning them with fine sand paper and steel wool, then i applied flux to the ends of the pipe and put the whole thing in the oven for 20 minutes bringing it up to soldering temperature, this step saves on Map gas because copper that size needs alot of heat to solder properly.
Then using a pair of "OVEGLOVES" heat proof gloves i quickly removed it from the oven and fired up my torch and started soldering the end caps in place.
I then ground off the threads on half of the garden hose connector and VERY carefully drilled a 1" hole were i wanted the gas bung, back into the stove it went for 20 minutes, i took it out again and soldered the bung in place.
Then i drilled a 1/2" hole in the bottom of the tank were i wanted the fuel valve to go, and soldered that in place.
Let it fully cool.
I then put a hand full of steel nuts in the tank with dish soap and hot water and shook it very well to clean out any excess flux or copper shavings out of the tank, do not skip this step, i then blew it out dry with compressed air.
All told the part alone cost me about $100 bucks IF your plumbing supplier is nice enough to sell you a short length of 4" pipe.
I hope this helps.
BBB