Features and Benefits:�Vent lubrication fitting for placing above normal lubrication levels to allow air to escape when internal pressures rise�1/8" PTF SAE short threaded connection�Trivalent zinc-plating for resistance to corrosion�Cap prevents ingress of water or dirtThe product is Air Vent, 1/8" PTF. The product is manufactured by Alemite LLC and made in United States.