Push-Fit Adapter Fitting, Application Vacuum, Fitting Side A Connection Type Push-to-Connect, Fitting Side B Connection Type Push-to-Connect, Fitting Side A Tube Outer Diameter 4 mm, Fitting Side B Tube Outer Diameter 4 mm, Fitting Material Nylon, Color Black, Includes Pre-Applied Thread Sealant Pre-Applied Thread Sealant Included, Maximum Operating Pressure 250 psi, Maximum Operating Temperature 160 Degrees F, Overall Length 1 7/32 in, Specific Fitting Shape Straight Connector