Material Brass Thread 1/4" NPT Hose 1/4" Barb Anti-siphon valves are required by Federal Law and the USCG on all permanent fuel tank installation. 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