MALE CONNECTOR/NYLON/Tube to Male Pipe Thread , 1/2 inch tube outside diameter, 1/2 inch pipe thread. 268N08X08NYLO-Seal Male Connector | Fits 1/2in Tubing, 1/2in Pipe ThreadNYLO-Seal Nylon Male Connectors have excellent resistance to acids, alkalis, dilute mineral acids, most organic acids, petro..