What are the benefits of 19ml priming volume?

The Compact Disposable Units (CDU) have very relaxed heat transfer process and unmatched ability to handle intense and intermittent bolus flows. While a very small priming volume from other manufacturers may have some merit, this situation also results in significant limitations related to aggressive heat transfer at high flows and inability to address intensive bolus flows (push-pull methods, hand pump, syringe, or LifeFlow-like devices).