Which rollermat filter to use with bean animal style overflow?

[cimulation]

I'm looking at buying a rollermat filter but I'm not sure which one will work. I currently have a Synergy Shadow Overflow, which is a bean animal style overflow. Each one of these rollermat filters only have one inlet. With a primary and secondary drain on the overflow, how do I connect them to the filters?

 

[vtecintegra]

I have the bubble magus and lucked into a second feed elbow. I was feeding it from both sides. If you can cut and glue acrylic, I would think you could make a second elbow and do the same with most rollers, as long as you don't over power it with flow.