Parts for DIY air exchanger

It's a work in progress so I will try to update as I work on it.

Building a DIY custom air exchanger. Uses two fans, plastic cardboard and four parts I created to join the air exchangers together.

I included my basic design to show how it fits together.

Two custom parts.

One to join the plastic Diamond air exchangers made out of plastic card board.

One to join the plastic Diamond air exchangers to a 1X6" board.

I used three plastic Diamond air exchangers so there is two c