Boat fuel tank 3 gallon is made of high-density polyethylene, light weight, low permeability, anti-aging, impact resistance, won't crack or chip. It's perfect for Small to Large Boats, Inflatables, Tinnies, Canoes and even Kayaks. I-shaped lifting handle design, light weight, easy to carry and easy to stow. Standard nozzle: the interface outward from the rear hole. There is a nut with its own air exhaust, which can minimize leakage.