Moeller Marine 033801-10 3/8" Barb, 1/4 NPT, Aluminum Anti-Siphon Valve

Moeller 033801-10 3/8" Barb, ¼ inch NPT Aluminum Anti-Siphon Barb. Anti-Siphon valves, are required by Federal Law and the USCG on all permanent fuel tank installations. Use 15 (Brass) calibrated for HP 200 & above and 30 (Aluminum) calibrated for HP below 200. Delivers Coast Guard/Industry standard anti-siphon protection on all gasoline-powered boats. Combines anti-siphon protection with a convenient hose barb design.