Where are the vents

BogieMeister

 I’m in the process of purchasing a new 2018 T@B S. One difference I’ve noticed is that on the older tabs there are two vents under the front window, whereas the new tab I am buying has no vents. What has changed? 

JohnDanielsCPA

They are vents to the refrigerator for high altitude conditions.  The new refrigerators don’t need these.  Note that there are now two vents on the side of the T@B; in the past, there was only one.