MALE RUN TEE/BRASS/ Tube to Male Pipe Thread to Tube , 1/4 inch tube outside diameter, 1/8 inch pipe thread. 271P04X02Poly-Type Brass Male Run Tee | Fits 1/4in Tubing, 1/8in Pipe ThreadPoly-Type Flareless tube fittings have reduced a installation time when compared to regular compression or flare fi..