Male npt thread both sides coupler hose connector.
Also available in different size and color, pls contact us for more information.

The NPT thread is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid, Fit all Oil / Turbo Fuel Line / Rail Pump Injector Fitting
No longer do you need to worry about flaring and splitting aluminum tubing to make your connections
Universal Using for Braided Fuel Lines (Hoses) Oil, Fuel, Water, Fluid and Air Line
They assure positive sealing and come in a corrosion-resistant finish.
They provide a secure way to connect lines through panels
From there it's usage spread to the aftermarket automotive performance field for its ease in adaptability, upgradability and durability.
Professional installer is highly recommended. Installation instruction is not included