Slide-Out Topper Awnings

[Montana_451]

I am not sure if this is the right location for my question, but here we go. I recently picked up my Montana Big Sky trailer and I am investigating if slide out topper awnings are a good investment? Any help about the type to purchase and where will be appreciated.

Steve & Francine
2001 International 4700LP
2004 Montana Big Sky 3295RK
2 German Sherpards (Seti and Maya)