This is a design by King of Random with a few key tweaks.
Parts List:
1×3/4 Stainless Steel Reducer
3/4×6 Black Iron Pipe Nipple
1 1/4×3/4 Galvanized or Black Iron Reducer – drill and tap holes for set screws
1/4 Brass Plug – drill #57 hole (1.1 mm)
1/4 Black Iron Coupler
1/4 Black Iron Street Elbow
1/4×10 Black Iron Pipe Nipple
1/4 FIPT x 3/8 Male Flare Needle Valve – very hard to find, let me know if you find another source for these
I sell these burners for 80 each. Or you can buy the parts and the assembly and machining yourself for 60. I also sell a connection kit for 60 that comes with a 30 psi regulator, 6′ of propane hose, and the brass fittings to connect the burner to the propane tank.
You can find forges, burners, and and parts on my website Rushfireforge.com
https://www.cncmachingparts.com/
Jiesheng Hardware located in QiaotouTown Dongguan city Guangdong Province, now we has all kinds of imported machines, CNC computer lathe , computer processing center, precision automatic lathe, screw machines.