Permanent Enclosure Exhaust

I designed and printed this adapter to put on my printer enclosure wall to vent fumes out of the nearby window when printing ABS/ASA.  This adapter was designed to utilize a portable AC window kit that used a 5.1" exhaust hose (search for portable AC window kit 5.1 on Amazon).  I'm guessing the white hoses are pretty much the same between vendors.  Unfortunately the particular vendor I bought from stopped selling it.

This was designed to be permanently attached to the enclosure wall with screws. The hole pattern is for a 120mm fan.  The idea was to sandwich the enclosure wall between this adapter and a fan (or the included fan housing) and bolt the whole thing together.  I liked the idea of having a fan housing the same size as the adapter to help spread the load on the enclosure wall.  The plug will thread into adapter to seal it if the hose is removed.  The fan grill is based on the Noctua low noise grill design.

In the end I decided to design a removable version instead but thought maybe someone can use this.