It was used to close the through hole when removing the air conditioner.
Rating
100%
I was able to close the through hole with one touch just by pulling it with a cable tie. The outer wall side is to prevent rainwater from entering. I applied silicone to the back of the lid and then locked it. Just wipe off the protruding silicon, and the measures against rainwater intrusion are perfect. (Translated by machine.)
Used because the location of the FF stove was moved and it was necessary to close the through hole in the wall of the intake / exhaust stack before moving.
Rating
100%
It was a very solid product. The goal was achieved 120%. (Translated by machine.)