Attwood 6-Gallon Plastic Fuel Tank See-thru tank makes fuel level visible at a glance from any angle, eliminating the need for fuel gauges that can be inaccurate or case leaking. Tank includes vented cap, filtered pickup tube, and gas line coupling for " NPT fittings. Adapts to all outboard engines. Massachusetts Fire Marshal Approval #PC-156, NMMA and ABYC approved. 21" L x 11 W x 9 " H. Gas tanks do not quality for "free freight" offers.