Tube Support, Application Air, Air Brake, Compatible Fitting Connection Type Compression, Compatible Tube Outer Diameter 1/4 in, Compatible Tube Inner Diameter 3/16 in, Fitting Material Brass, Material Grade 304, Maximum Operating Pressure 150 psi, Maximum Operating Temperature 200 Degrees F, Overall Length 17/32 in, Specific Fitting Shape Tube Insert, System of Measurement Imperial, Standards SAE J246, Minimum Operating Temperature 40 Degrees F