This cleverly designed 40l (10.6gal) tank is extremely strong and is shaped to sit on the vehicle's floor behind the front seats. Made from food grade polyethylene and is BPA free. The cutout spans the transmission tunnel and the top section can be used as a nonslip floor or stacking supplies/luggage on top of. This design allows for fitment into most vehicles.* Please check specs to confirm correct fitment before purchase. If children are to be seated in the rear, the tank can be strapped to the front seat mounts using normal ratchet tie down straps. The tank has plastic pipe fittings on each side for connection of a hose and tap. (Hose kits and taps are not included) The WTAN014 are sold seperately. This product will not fit in the Toyota FJ Cruiser, Lexus GX 470, Suzuki Jimny or 3dr Jeep Wranglers.