Reducer, Tube Fitting Material Wrot Copper, Fitting Connection Type C x C, Tube Size 5/8 In. x 3/8 In., Outside Dia. 3/4 In. x 1/2 In., Max. Pressure 631 psi @ 100 Degrees F, Temp. Range -20 Degrees to 400 Degrees F, Standards ASME/ANSI B16.22. This item has been restricted from sale in the following state(s): []