3/8 Barb x 1/4 NPT Brass Anti-siphon Valve – Rigging Shoppe
ANTI-SIPHON VALVE 1/4 NPT X 3/8 BARB
Moeller Marine Products Aluminum Anti-Siphon Barb (3/8 NPT) : Boat Fuel Tanks : Sports & Outdoors
Fuel connectors
1/4 MNPT x 5/16 Barb Brass Anti-Siphon Valve
Seachoice Anti-Siphon Valve, 1/4 in. NPT, 3/8 in
Valves & Strainers
Seachoice Anti-Siphon Valve, 1/4 in. NPT, 3/8 in. Hose, Aluminum, Meets USCG Regulations : Boating Equipment : Sports & Outdoors
1/4NPT Male Anti-Syphon Valve Fuel Hose Fitting with 3/8 barb
Anti-Siphon Valves & Fittings - Marine Parts Source
Brass Check & Anti Siphon Valves – Blackhawk Supply
1/4 MNPT x 3/8 Barb Brass Anti-Siphon Valve