1. Too slow. 9 days to ship. 15 days to receive. It would have been longer if I had not emailed asking where the order was.
2. All four caps leak. I checked the seals. They are flat. They leak when the caps are finger tight. Leak worse if I snug them with a wrench. Jugs had 5 gallons. If I pick them up by the handle, gas leaks out - all four! No way I would attempt to pour with the nozzle.
3. I have a fuel transfer pump designed to screw in to this style of jug, and your cap is not standard.