That's the one I got. Seemed to be the smallest out there. Seems light enough and took me a couple tries to get it opened, so it'll be very unlikely that a bear will figure it out.
I didn't think the 'sack' style bear containers would work on Whitney. Don't you have to hang them from a tree... and there's aren't a lot of those high on the mountain, are there?
In fact, this page seems to indicate the the bear canisters are required in the Whitney zone:
http://www.fs.usda.gov/detailfull/inyo/recreation/?cid=fsbdev3_003846&width=full
