Originally Posted by Marcm157
15' would probably work. My obstacle is that my quick connect is to the rear of my bathroom entry steps so I lose several feet of hose just going under or behind them. I may see if a local propane dealer can make me a custom hose.
15' was a semi-arbitrary distance of how much real coverage a 20' section of hose will provide without pulling or kinking.
The fittings for low-pressure propane are either 1/4" NPT or 3/8" flare. Even though they are about the same size, you will never mistake them for each other once you see both side by side.
When you discuss this with a reputable propane dealer, they will definitely set you up with the proper pieces. Possibly even the correct quick connect that'll fit your RV.