Universal Electric Fuel Gauge & Sending Unit Kit
from West Marine, Part Number 547406You can see it on their web site.We cut a hole in floor of the rear lazerette over the fuel tank for a 10 inch deckplate to access the top of the fuel tank.We drained our fuel tank, drilled a hole for the sensor in the top, drilled a hole in the side of the cockpit for the gauge, ran the DC wiring (with a switch).I'm not sure what Alan is talking about. We don't use the fuel gauge for filling the tank. We use it for figuring out WHEN we need to fill our tank.Good Luck.