Here is a more detailed description of a propane brazing set up taken from my framebuilding class manual:

A list of brazing equipment from the tank to the flame:
1. A propane regulator (most likely with “B” size American fittings)
2. A flashback arrestor (they come in 2 styles, one for connecting to the regulator and the other – in which the flow goes the opposite way – to the torch handle. A flashback arrestor has a male and female end. The difference between the 2 styles is that flow in the regulator one goes from the female to male end. The one that attaches to the torch handle flows from the male to female end.
3. 3/16” rubber hose (it is smaller than the other common ¼” size). R rated is for acetylene use only. T rated is for use with propane or any other gas including acetylene. If this is going to be connected to a TM Technologies ultralight hose, it should have a B fitting on one end for the regulator connection and A fittings on the other to connect to the TM hose or torch fittings. Hoses can be bought with both A or both B or an A and B fitting. This is the transit hose from the tank(s) to the brazing station. They should travel along the ceiling and not on the floor. If it is used without a light hose than you definitely want one with A/B fittings (that is of course if your regulator has a B fitting). They come in 12 1/2' and 25' (and longer) lengths. Probably the 25' length is best if one is running the hose along the ceiling.
4. A brass male /male “A” connector.
5. TM Technologies ultralight hose. It has A female fittings on both ends but comes with 2 A to B adaptors. This is a luxury item that makes brazing motions easier but it is not essential - especially for those on a tight budget. It is most likely too short (9') to be used as the only hose from the tank to the torch handle.
6. “A” size check valves.
7. An “aircraft” style torch handle with A size hose attachments
8. Whatever mixer/elbow/tips fit your needs. If you are using a Victor torch handle (or compatible) the propane mixer/elbow is a UN-J (or compatible like a 881W mixer). The most commonly used propane specific tips to screw onto the end of the UN-J will be a TEN-2, TEN-3 and TEN-4. The most frequently used one will probably be the size 3.