2016 Grand Design Momentum 348M walk around

For sale in Foley, Alabama. 6-14-2022. This is a 2016 Grand Design Momentum 348- M. This unit is used, in excellent condition for it's age. owners kept up maintenance and repairs. Showing by appointment only, please call 251-233-7523.

[@kenj.8897]

Explain to me how those windows are double pane?