I'm the crew chief for a team in the upcoming 25hr NASA enduro.
We have a Fuelsafe drybreak refueling rig, plus a few 11-gallon fuel cans. I want to fit drybreak nozzles to the gas (ala NASCAR) as a backup to the fuelrig.
What is usually used to couple the can to the nozzle (45 degree elbow - rubber, silicon?)