Metric Metal Push-to-Connect Fitting, Application Cooling, Air, Fitting Side A Connection Type Push-to-Connect, Fitting Side B Connection Type Push-to-Connect, Fitting Side A Tube Outer Diameter 4 mm, Fitting Side B Tube Outer Diameter 10 mm, Fitting Material Brass, Color Silver, Includes Pre-Applied Thread Sealant No, Maximum Operating Pressure 300 psi, Maximum Operating Temperature 200 Degrees F, Overall Length 37 19/32 mm, Specific Fitting Shape Tube Reducer, Release Type Ring