10x40 End Fill Spun Aluminum Gas Tank - 13.5 Gallon - 3/8 NPT - Sandrail - Dune Buggy - Trike - Hot rod - MADE IN TH E USA! 10x40 End Fill Spun Aluminum Gas Tank 3/8 NPT Bottom Center Outlet Vented Gas Cap and Two Black Brackets included Our Tanks are 100% American Made! Highest quality TIG welds!