This is the genuine article mil-spec 18-gallon portable fuel bladder made by Zodiac, for use in Zodiac's F470/FC470 CRRC military inflatable boat.
I thought it might be a good idea to post on this forum before going straight to eBay. It's new, but "aged inventory" meaning it's mfg date is too old for the military to purchase. It came to me from a former Zodiac MilPro dealer.
The potential eBay listing will be $575 to start, with a Buy-It-Now of $800. If eBay history proves correct, it should sell for $700-900.
Reasonable offers accepted.
Paypal only, fee on you, unless it's a local pick-up which can be cash.
Boxed in cardboard it will be approximately 47"L, 20"W, 9"H @ 20 lbs. My ZIP is 20024, WashDC. You should be able to figure the approximate shipping cost, which will added to the sale price.