Equal Straight Union Application Chemical Fluids Air Fuel Hydraulic Oil Machining Oil Potable Water Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Brass Fitting Side A Tube Outer Diameter 4 mm Fitting Side B Tube Outer Diameter 4 mm Maximum Operating Pressure 3 335 psi Maximum Operating Temperature 250 Degrees F Overall Length 28 mm Specific Fitting Shape Straight Connector Series Metric Compression