Chromatographers seeking to optimize mixing volumes at flow rates below 100 μL/min. now have the
ability to customize a mixing volume which is perfectly tuned to match the separation system. Choosing
the right mixing volume is always a compromise between absolute noise reduction, delay volume, and
gradient distortion. Ideally the optimum mixing volume should be determined experimentally by evaluating
several mixing volumes to determine which provides optimum chromatographic performance.

You may select 2 kinds of volumes out of 0.5, 1, 2, 5, 10 and 25 μL to customize a mixing volume. 

In-Line Combo Static Mixers are only sold as complete assemblies.