After plumbing a couple of houses and my boat, I really got to like the hard pvc and crimp furrel fittings .Quick ,cheap and easy to go to npt or hose barb. A crimping tool is maybe $30 so worth while to have it onboard and a good assortment of t's, el's,bands etc is great for fix or modify later. (just a hacksaw) Two sizes of fittings (the little barbs are different) may still available for old and new pipe. Not interchangeable.