Quiet Cool 3100 Adapter QCADAPTER3100
![Quiet Cool 3100 Adapter QCADAPTER3100](http://www.wholehousefan.com/cdn/shop/products/1340923790_896b8544-7e41-4252-9403-5f6c5dcb22c9_{width}x.jpg?v=1595444018)
Use this vertical adapter if you are going to mount it vertically on a wall. For use with CL and ES 3100 Quiet Cool Whole house fan.
Makes sure that the dampers on the whole house fan close all the way.
For 14″ x 22″ Damper Ceiling Box
Makes sure that the dampers on the whole house fan close all the way.
For 14″ x 22″ Damper Ceiling Box