[Blue_Heron]

Hi Scott,
Looks like SeaStar uses the hard plastic tubing for their hydraulics like Bennett does for their tabs. I would say Hermco's right about the fitting. The pic is a little blurry, but that looks like a standard ferule fitting like you would use to connect the supply tube on your kitchen sink to the wall stop (shutoff valve). If you choose to reuse the tubing, you'll have to trim the end square and get a new ferule, which you should be able to find at any well stocked hardware store. You can probably reuse the nut. The most important thing to know about ferule fittings is not to over tighten. It makes them leak.

If the tubing is brittle I would replace it. If it's relatively new and just broke because it got bent the wrong way, I wouldn't worry about it too much.
Dave