The Phase Four tank end of the hose has a threaded fitting and is very easy to replace in the field- assuming the tank is empty of course.
Also, if you spring a leak in the hose you can actually cut the hose in half at the break and then screw one end into the inside of the other end ( 4-5 inches) and stop the leak permananently - I suggest calling the Phase Four people for detailed instructions, as they have a couple of tricks of the trade on how to bend the 'wires' and twist the hose.