4x Pelican/Hardigg type cases
These are night vision goggle cases with the airtight pressure relief valve etc. Cases were stored out doors on a pallet by gov so there are some small rust spots on metal handles but nothing a few mins with a dremel and wire wheel wouldn't fix.
The seals for these utilized a thin walled silicone tubing. A standard vaccum tube from Vatozone will seal them up air tight. These got shelved years ago when I had hundreds of these because the seals were missing.
$25 ea. Shipping on you. Dimensions are 16x10x6