If you have to buy one, don't bother getting the X, supplied one, they're not to good--

--Go to one of the big stores-Costco, Bestbuy, etc: and get a red cross PKG--

--I've got both, so I'm prepped for anything axcept a UFO Krypton attack--

--Just be sure that the pkg, is the same size, to fit back there on the hatch, like I have mine (2)-

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-- --JIMBO