Racell units are made from a strong plastic alloy, making them tough, flexible, and lightweight. They're used when a new main fuel tank is installed, or an auxiliary fuel tank is to be installed on a semi-permanent basis. Racells are compact, making them a perfect choice for short circuit racing, sprints, and hill climbs. They include a flush-fit filler cap, two inlets and one return fitting, and a rollover vent valve. Capacities and Dimensions: Nominal Capacity: 5 Gallon (20) Nominal Bladder Dimensions: 10.00" x 10.00" x 17.00" Nominal Weight: 8 lbs. Ideal for drag racing, hill climbs, and drifting