Dr. Shrink CargoDry Desiccant 500gm Pak

CargoDry Pak bags contain calcium chloride desiccant which absorbs moisture vapor and reduces dew point temperature inside transport containers, boats, and other storage containers.
Unlike many other calcium chloride desiccant productss, CargoDry turns into a gel as it absorbs water, so there is no chance of any liquid leaking into the boat or container.

By preventing condensation, CargoDry Pak eliminates corrosion, mildew, peeling labels, and other harmful effects of moisture-related damage during shipping and storage.

Packaged in 500 gram bags (17.6 oz; 1.1 lb) which protect 45 cubic feet.
It takes 30 bags to protect a 20 ft container.
It takes 60 bags to protect a 40 ft container.