Just a PSA that it looks like Lowe's is changing their tub size so if you use them for your racks, you may want to stock up before the change-over is complete. The new tub has a much thinner lip so there will be a gap large enough for an adult to get through between the tub and a rack designed for the older tubs. One Lowes had already gone completely over to the new version but I found a few left at another store so there's still some out there.