Vent Skylight Sky Light Window, 4' x 2' , 22-1/2-Inch x 46-1/2-Inch,Tempered Glass

Seems pretty good. But there is no nail flange. Not sure how to secure the unit to the framing other than gooping a bunch of sealant around the edge like in the pics they posted.

Replace skylighr

so far, so good. Very good quality. It worked for our application.