Tube Insert, Application Compression, Cooling, Compatible Fitting Connection Type Compression, Compatible Tube Outer Diameter 4 mm, Compatible Tube Inner Diameter 2 mm, Fitting Material Brass, Material Grade C26000, Maximum Operating Pressure 3,335 psi, Maximum Operating Temperature 250 Degrees F, Overall Length 11 mm, Specific Fitting Shape Tube Insert, System of Measurement Metric, Standards CNOMO, PED, REACH, RoHS, Compatible Tube Hardness Not Applicable, Compatible Tube Material Polymer