816Z19-A Crimp Coupling Fitting, Application Potable Water, Fitting Side A Connection Type Press-Fit, Fitting Side B Connection Type Press-Fit, Fitting Side A Copper Tube Size 1/2 in, Fitting Side B Copper Tube Size 1/2 in, Fitting Material Copper, Fitting Side A Pipe Size Not Applicable, Fitting Side B Pipe Size Not Applicable, Material Grade C12200, O-Ring Material EPDM, Specific Fitting Shape Crossover Connector, Finish/Coating Polished, Fitting Side A Tube Outer Diameter 5/8 in