Review on Master Assembly Fittings Pressure Professional by Mike Ewing

I ordered this hose kit to replace a very old kit on my paint tank. The price wasn't great so I took a chance. Website description and photos show 5/16" air hose with standard 3/8" fittings and 1/4" liquid hose with 1/4" fittings. Exactly what I needed and 12 feet long was enough for most paint jobs I do. Well, then everything went wrong. I received a set of hoses and was dying to connect them and start painting. Will not happen. I was given a 5/16" air hose with 1/4" fittings and a 1/4" liquid hose with 3/8" fittings. The complete opposite of the description. So it's coming back. My next question is: should I try again? The hose and fittings were of excellent quality. If only I could attach it to my pressure tank and gun.