EK-AF FillPort is a panel mounted adapter, primarily designed as an extension to reservoir to function as a service port. This adapter fitting allows easier topping-off and can alternatively also serve as a drain-port. This adapter is equipped with one standard female G1/4″ port and is closed-off by enclosed G3/8″ Plug, required Allen Key is also enclosed. Made from chrome-plated CNC machined brass. Technical data: Threading: 1 x G1/4″ Plug: 1 x G3/8″ Thread length: 7.0mm Diameter: 33.0mm Height: 27.0mm ROHS 2.0 compliant!