The Fuel Filler Hose is constructed from materials resistant to the fluid being conducted. The inner diameter of a hose refers to the measurement of the hollow hose's internal opening. It determines the flow rate and volume capacity of the hose. The outer diameter of a hose refers to the measurement of the hose's external circumference.Attributes:• Provide a smooth, uninterrupted flow of fluid, minimizing pressure drop• Inner diameter increases from 50.8mm to 77mmApplications:The Fuel Filler Hose enables the seamless flow of transmission fuel from the filling source to the fuel tank ensuring the smooth and accurate filling.