I think you can go to Lowes and get "Shark Bite" fittings to take the place of the original fittings. You will also have to get the special tool for the fittings, think it's about 20 bucks, but I'm sure you'll end up needing it more than once with RV ownership.
I'm sure some of the guys will chime in soon, and they might have better advise than I have.
Sunny #18 2003 F-344SR #8157
Sunny #19 1997 T-2653 #5485
1999 Ford F350XLT DRW Crew Cab, Long bed 7.3 PSD
2002 VW Jetta TDI.. AKA: Kitty's Kruiser