We special ordered them on our 4092BFL as they were not on the option sheet. Cost an extra $1485.00 from Manufacturer, surprisingly more than the $1400.00 upgrade for double pane windows.
Ours on our current 2008 Wildwood don't flap in the wind, and it acts as another buffer from raindrops especially if raining at night. We don't get the noise of the raindrops hitting the roof of the slideout over our heads because of the toppers.
We will never go without slideout toppers in the future. It's also nice that nowadays they are black to hide getting dirty, compared to the white ones on our current 2008 which need cleaning once a year.
1994 Damon Hornet 27R
2008 Wildwood PT- 392FKTB (For Sale)
2016 Wildwood 4092BFL (Still Getting Fixed by Dealer After Production)