Push-To-Connect Tube Fitting, Union Tee, 1/4" Tube OD Tee with three openings for connecting and branching three pipes 1/4 Inch O/D Tube x Tube x Tube (Union Tee) Made of polybutylene terephthalate (PBT) for resistance to solvents, shrinkage, heat, and impact Working pressure of up to 150 psi Accepts Nylon & Polyurethane tube fittings