Reverse Flow Syrup Pan

[Paddymountain]

Hi guys,
I have a question, Why do they make some evaporator pans reverse flow?
I'm new to this hobby and I am not sure why they would make a pan like this.
I assmue its to keep the pan cleaner. Is it important for a small 2x2 pan,
or just for the big industrial type.

[Amber Gold]

It keeps niter from building up as fast so the pan doesn't need to be cleaned as often. As far as I know all pans have dividers. The older 2x2 pans had two channels, the newer ones have 4.