These DOT legal aluminum fuel tanks are designed for transferring diesel fuel, gasoline, or aviation fuel from the bed of a pickup truck to remote or heavy equipment. Aluminum tanks do not rust which protects fuel from contamination. This tank can also be used as an auxiliary unit for additional capacity for a factory tank with the use of an RDS diesel install kit. Tank has a lockable gas cap, 2 baffles, reinforced 2" FPT coupling on top for mounting a transfer pump, 2" fuel fill neck and 3/8" FPT drain plug. Made in U.S.A.RDS diesel install kits also available for diesel gravity feed sku 243102099, 243102299 and 243102199