Drivers racing with a nitrous oxide system demand reliable components—and NOS Hi-Flo bottle valves are the best of their kind on the market. They feature a large outlet port, a standard connection, O-ring seal, large internal ports, and a 45 degree handwheel. Best of all, they'll support over 400 hp! These Hi-Flo bottle valves are available in mini and standard versions to fit a range of nitrous bottle sizes. Race toward the finish line with the dependability of NOS.