Product review (1 stars): Dangerous design
FIRE HAZARD!!!  We installed this screen in late spring, and by the end of summer we were noticing heat backing up in our laundry room.  Climbed back up the ladder, and lint had completely blocked the grid.  There is not enough room in this screen to allow small lint particles to vent safely.  Our dryer is not old and was recently cleaned, so I think this is a problem many could have.