Trenton Pipe SS304-62004 Pipe Fitting, Class 150, Cast Stainless Steel Grade 304, Tee, 1/2" NPT Female Threads A Tee is used for changing the direction of pipe runs to either combine or split a fluid flow Quality Precision Investment Castings made of 304 Stainless Steel to ASTM A351 Standards USA, Standard Taper Pipe Threads, NPT-Female, to ANSI B.120.1 Standards