I got it from a nearby Costco. (I'm on Vancouver Island in BC). I looked online for it once but didn't find it either.
The Costco here has had them for the last two years. Seems like they get them only once in the Spring and when they're sold out that's it. No more until the next year. $209 for the last two years. Great price. I think it came in one huge box. Had someone from Costco help me load it and I brought it home in my Roadtrek
It is named Steel Frame Canopy
Item # 680355
The customer service number on the assembly instructions manual is: 1-800-585-9969 Mon to Fri. Maybe they can tell you where else they are sold.