You can use Shower Hose. I got some fro home depot. It's a little thinner, about 0.5" (as opposed to the 1" Spirit stock), but it's SUPER flexible and way tougher.
https://www.homedepot.com/p/American-St ... /307246990 Otherwise, you can just cut the Spirit hose to make it split loom. The advantage here is that it's free, you don't even have to detach it, and you get a little more flexibility out of it.
I'd say try cutting the stock hose first, if that's not flexible enough, then you can always replace it with the shower hose.