Just doing a quick search on Amazon and going to guess this fellow is looking at Evil branded products. It's imported stuff for sure. The hose is the smaller I.D. material (-6 shows 0.340). If you have the abiltiy to pressure test the hose assemblies before installing them, then you may have some relief in knowing that they didn't leak or blow the ends off....but, not everyone has the ability to pressure test assembiles to verify the good from the bad. So, this is a gamble for sure.

As for the socketless/push-lok hose, the Aeroquip FC598 that Summit sells has worked for me. Might be a better deal out there through an Aeroquip distributor? The AQP tube is pretty tough to a lot of chemicals, and has a higher temp rating. The socketless hose can be used with just about any hose barb that is designed for this type of hose (brand specific does not apply here). Simple 80-90w gear oil is good assembly lube.