Push-to-Connect HVAC Fitting, Fitting Side A Connection Type Push-Fit, Fitting Side B Connection Type UNF, Fitting Side A Pipe Size Not Applicable, Fitting Side B Pipe Size 5/8 in, Fitting Side A Tube Outer Diameter 3/8 in, Fitting Side B Tube Outer Diameter Not Applicable, Fitting Material Brass, Fitting Thread Size 5/8-18, Maximum Operating Pressure 870 psi, Maximum Operating Temperature 250 Degrees F, Overall Length 1 5/8 in, Specific Fitting Shape Flare Adapter