Better hope it works in your correct range, there's 15 psi EFI, 30, 45, and around 60, none of the parts interchange, the adjustability is only a narrow range and should match (overlap) your original stuff. If you got really high pressure stuff there barbs won't cut it unless you take extraordinary measures. Why modern stuff does not use that method of hose attachment any longer. The hoses will simply work their way off to come off suddenly and blowtorch city. Heck even the hoses can blow out if not rated for use there.
The two ports is for a bypass system, if you don't have that on the aftermarket it won't work. Need one in, one out and the bypass back to tank. 3 outlets in all.