Who makes that hose? Purchase hose from someone like Aeroquip, Fragola, Earl's from Summit. I wouldn't trust that $50 hose and fitting to water my lawn.
I wouldn't cheap out on fuel line period. I have no direct experience with the ones you listed. But I did get an eBay tow hook that appeared to have a shank made of quality aluminum, which turned out to be so weak it would likely snap on its first use.