MALE BRANCH TEE/BRASS/ Tube to Male Pipe Thread to Tube , 3/8 inch tube outside diameter, 1/8 inch pipe thread. 272P06X02Poly-Type Brass Male Branch Tee | Fits 3/8in Tubing, 1/8in Pipe ThreadPoly-Type Flareless tube fittings have reduced a installation time when compared to regular compression or f..