Brass Metric Compression Fitting, Application Air, Coolants, Compatible Fitting Connection Type Compression, Compatible Tube Outer Diameter 4 mm, Compatible Tube Inner Diameter 2 mm, Fitting Material Brass, 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 Material Polymer