Originally Posted by ncp
They may or may not be be. The Seastar are definitely not "cut to fit". The fittings are hydraulically pressed on each end and not adjustable.
Was talking about the actual thread/nipple/nut size. I don't recall what it is, exactly, but somewhere in the 1/2" range? I was thinking the hoses would likely be interchangeable between the two systems. Could well be wrong, as a quick search shows different part numbers (though I didn't do much comparison.)