50 oz tank measurements: 3.5″ H x 4.375″ W x 8.375 Long. Items #690-692 come complete with stopper and fuel tubing for both gas and glo fuel and proportionally larger brass tubing and clunk. Du-Bro Fuel Tanks are designed to be tough! Our fuel tanks will not split or crack from vibration or pressure. In fact, our fuel tanks can be used with pressurized fuel systems!