A duckbill is a one-way valve. They prevent aeration, reduce fuel slosh noise, and are commonly used on the return hose inside fuel tanks to prohibit fuel backflow for fire safety. When used with venturi jet pumps, they prevent air from from entering the vacuum chamber and disrupting the flow path.

Install onto any 3/8" or 10mm hose barb and secure with the provided zip tie. Be sure to keep the duckbill low on the end of the barb so that the barb does not hold the valve open.

• Material: Fluorosilicone
• Opening Pressure: 0-1 kPA
• Hardness: Shore A70
• Inner Diameter: 9.5mm
• Height: 22.6mm
• This product is compatible with all fuel types
• Cable tie for fastening are included.