local discount place had a rack of 'em. I bought a couple, for fun. It has a clear fuel line with a filter on the tip, and a plastic piece with an O-ring that fits a standard plastic gas can. (that's the "bung" part) Sticking out of the top is the tank connector like you'd find on an OEM gas tank. You plop it on, and then tighten the gerry can top piece (just the one with threads) over it to seal it. They had ones with different fittings. Basically you end up with a gerry can with the tank fitting sticking out of the pour/fill spout. On the instructions it says to loosen the vent on the gerry can to avoid vacuum. Made in Canada... says UL and CSA approved on the package.<br /><br />Anyone heard of these? Seems like a good idea if you only have 1 "real" fuel tank. Much better than pouring gas in the boat.... or you could have a small 1 or 2 gallon gerry can to run a kicker.