Don't know if this is available online. This was on display at my local WM store in Northwest Indiana.
Thanks to globetrotter365 for this which I have confirmed :
It seems this is the 20" model:
and the Brickseek link is:
I have been looking for a high velocity fan for several months and this isn't an insane price but by $5 it's the best price I've seen.
By the way the steel wall mount hook they show on the outside of the box is included which I found delightful and bizarre.
This also appears to be the exact same fan that all the major home stores carry just in a mainstays box.