Quick Connect Harness and Jackets The Quick Connect.Harness provides the luer connection between the catheter and any male luer fitting. It can be used separately for procedures such as bolus dosing, intermittent infusion, catheter maintenance and timed blood draws, when tethering is not required. Cannulated animals are free to roam between procedures, unrestrained and untethered wearing only the Quick Connect Harness. Catheters are protected and ready to access quickly and cleanly whenever needed. All you have to do is connect a syringe. It's that easy! There are two versions of the harness; elastomeric and cloth to suit all researcher. Each harness has 2 different pin sizes to fit a wide range of indwelling catheter.