Diameter Specification: This fuel line assembly has an 8mm outer diameter to match the marine fuel hose dimension. Application Scope: Designed as a replacement for boat marine motor engine outboard fuel lines used with and diesel fuels. Functional Purpose: Serves as a direct functional replacement for existing boat fuel line assemblies in marine propulsion systems. Material Use: Constructed as a gas hose and oil pipe suitable for marine environment fuel and oil transfer applications. Line Type: Functions as a marine fuel line hose intended for outboard engine fuel delivery and related oil piping needs., Manufacturer: NEVrnsKBy