Fuel tank vents

Decided to revisit my fuel vent lines. I originally used nylon lines to transition to the JDAir vents mounted on the gear cover plates. I have shark bites in the gear towers as a quick disconnect. I had to heat the nylon to create a flare and the flare cannot be torqued or it will crack. Concerned about B nuts loosening and losing tank pressure I decided to fabricate aluminum lines out of leftover soft tube.