Fastpipe compressed air fitting Application Air Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Nylon Fitting Side A Tube Outer Diameter 40 mm Fitting Side B Tube Outer Diameter 20 mm Maximum Operating Pressure 190 psi Maximum Operating Temperature 140 Degrees F Overall Length 3 1/2 in Specific Fitting Shape Saddle Drop System of Measurement Metric Standards ASTM B221 ASTM B438 Color Blue Compatible Tube Hardness 25 Shore