The FR1204H is a 12-Volt 15 GPM fuel transfer pump that comes as a pump only model and comes with a 3/4 in. elbow, 5 ft. 12-Gauge ground wire. It can be used to pump gasoline, diesel, kerosene, ethanol blends up to 15%, methanol blends up to 15%, and bio-diesel up to B20. The previous FR1204G model has been updated to the FR1204H model. With a removable junction box, the product is now easier to install. The performance specifications of the product did not change.