Reducing Tee, Tube Fitting Material Wrot Copper, Fitting Connection Type C x C x C, Tube Size 3 in x 3 in x 2 in, Outside Dia. 3-1/8 in x 3-1/8 in x 2-1/8 in, Max. Pressure 317 psi @ 100 Degrees F, Temp. Range -20 Degrees to 400 Degrees F, Standards ASME/ANSI B 16.22