Why is there a protrusion at the top of the filter?
on August 9, 2018
Posted by: Anonymous
There is a 3/4 inch overlap in the cardboard that protrudes from the top of the filter. It has three cutouts that don't seem to have any purpose and I think it makes it more difficult for me to close and lock the door in my Trane furnace.
This matched the manufacturer's number/size but upon installation hubby says it is about 1/2" shy. I will cancel my reorder until I figure out what went wrong.