MALE RUN TEE/NYLON/ Tube to Male Pipe Thread to Tube , 1/4 inch tube outside diameter, 1/8 inch pipe thread. 271N04X02NYLO-Seal Male Run Tee | Fits 1/4in Tubing, 1/8in Pipe ThreadNYLO-Seal Nylon Male Run Tees have excellent resistance to acids, alkalis, dilute mineral acids, most organic acids, pet..