I remember seeing somebody here writing about a device that helps prevent overfilling the gas tank and spilling gas out of the fuel vent. Its essentially a whistle that installs in the vent line close to the tank. During a fill up at the gas station, the air escaping through the vent makes it whistle. When the gas hits it, it stops whistling and you know to shut off the pump handle before the gas spills out of the vent and gets all over the side of the boat and trailer.
Does anybody have a lead on where I can obtain said device?
Eric