SRS Polished Alum. fuel tanks look as good as they work, tig welded by hand, 6061 Alum. #01 Tanks measure 9 inches long and 3 inch in diameter. Two 3/4 inch tall alum. bungs with std.3/8 thread located on top or bottom of tank to bolt securely to your frame, depending on mount location. Alum. bung for fuel exit is reinforced with an alum. bung threaded for 1/8NPT fuel petcock.