Description:Internal O Ring Diameter: 9.49mm/ 0.37"For Nylon Hose Internal Diameter: 8mm/ 0.31"Outer thread diameter:11mm/ 0.43"Allows you to quickly connect the fuel lines, very convenient.Better working condition with rubber sealing ring design.Fast assembly without tool, time and cost reduction.This allows you to quickly connect the fuel lines by pushing in and disconnect by simply pulling out while pressing the lock buttons.Note: Please measure your adapter and nylon tubing size (inside diameter) Package Include:1 x Fuel Line Connector.