To change the Filter, you do not necessarily need to take the entire air conditioner out of the A/C Frame.

The filter is flexible, so there are 2 ways to go about this.

1. Take the A/C trim ring off by removing the screws and removing the trim ring and pulling the A/C out slightly. Then pull the air filter out (it’s on the shower wall side) and you will need to bend it to clear the shower wall.
2. Remove the A/C Trim and unplug the A/C and remove the A/C completely and then remove the air filter.