During the process of remodeling my kitchen, I removed the Over-the-range Microwave but when I put back in, I saw this piece
I frankly cannot fit it anywhere, not in the bottom or on top at the vent
Here is the bottom
I had another microwave like this and never recalled a piece like that.
Is this from microwave or something else?
UPDATE 1
The microwave is ge model jvm3160rf3ss
Best Answer
It is an exhaust filter, primarily intended for if the stove fan exhausts back into the kitchen instead of to outside the house.
This filter has charcoal inside to absorb odors so they don't get recirculated through the kitchen.
For your GE model jvm3160rf3ss, its part number is WB02X11550. The product page there has looks to videos that show where this part goes and how to replace it.