Bypass hose and fitting dilemma

found this on _ b_y to use on my 69 340 barracuda works great
water pump bypass hose barb 1 inch barb to 1/2 npt
1" HOSE BARB X 1/2 MALE NPT Brass Pipe Fitting NPT Thread Gas Fuel Water Air 713807495282 | eBays-l140.jpg