Originally Posted by denverpete

I've used Container Dri II for shipping product in cargo containers overseas. Obviously these are a bit big - but perhaps they have smaller retail type versions.

I did find this site online: http://www.drytheair.com/xcart/store/catalog/product_16137_DRIERITE_8oz_Desiccant_Bags.html

Most of these guys will help you figure out what you need and how much you need. I believe there are a few desiccants out there that are also rechargeable. In general you will need about 8oz of desiccant per 10 cubic feet.