FDOLT1299-2 12 Gallon Rectangle Shaped Diesel Fuel Tank 18″ x 16″ x 11.5″, overall height with fittings 13.06″, roto-molded seamless crosslink polyethylene fuel tank comes with all the fittings noted on the diagram including the sender. This tank is ABYC and NMMA compliant. Please see our list of suggested installation materials. This is made to order and cannot be returned so measure twice! This tank comes outfitted with a diesel return fitting.