Greg:
Good ol' Rubbermaid has a few boxes similar to the DeWalts. They seal tight, although there is no real 3R listing or labeling, and the latches are also plastic.
The latches are fairly sturdy, hitting them if sliding the box in a tight space causes them to 'pop free'; not break.
Raintight yes, floodproof NO!! Hurricane Sandy killed mine, and the tools within.
