NIBCO 5811 Series ABS DWV Sanitary Pipe Fitting, Tee, 1-1/2" Hub Tee with three openings for connecting and branching three pipes Hub ends for connecting to male unthreaded pipes or fittings ABS-DWV for chemical and corrosion resistance, performance under wide temperature ranges, and light weight for quick assembly Smooth interior finish for reduced friction and material buildup Meets specifications ASTM D2661 and D3311 for quality assurance