Just a word of warning, squirrels find propane hoses tasty. I had one gnaw a hole in mine recently and I hope he got a good blast in the face. Another warning, good luck getting a new hose from Jayco and my camper is less than 2 years old.
I spent 4 hours back and forth between them and my dealer. Dealer says to get a part number from Jayco and we'll order you one... I call Jayco and they have no clue what I need. There's a part number on a tag on the hose I say, it's simple, 24 feet long, female flare on one end and pipe thread on the other, 1/2 I.D. hose. Nope, no clue, we'll email you a diagram so you can point out what you need. Lo and behold on the diagram its the same number I told them was on the hose. Another phone call to them, Oh, you need a propane hose, duh.... yeah here's the number, its a different number in our parts system. Call dealer and give this to them and they'll order it from us and sell it to you, we can't sell it directly to you. Grrrr
Next day dealer calls and tells me the number Jayco gave me is just for the bulk hose, no fittings, but we have a 17 footer in stock if that'll work. Sheesh, I told them 3 times (at least) that it was 24 that I needed, can't stretch it another 7 feet Mr Wizard.
Lets try Amazon, nope, Camping World, nope. Found a place near St Louis called MB Sturgis that will custom make any propane hose you need at what I thought was a reasonable price. Moral of the story is Jayco makes campers but good luck getting a part from them. I guarantee they have them already made up hanging somewhere on the production line but they don't have any spares.
Sorry for the rant, whew...