I realize that Sterilite is "industry standard" but if you can't find them locally, I would go to your nearest Container Store and buy some Iris brand tubs. They can also be ordered from their website in a comparable size.
I've used Sterilite for years, and as I add racks and tubs to my collection, I'm going Iris. There are NO grooves or indents in the tub, and cleaning is 100 times easier.