This is the Strongwell 4 x 8 foot box. It comes with three removable aluminum I-beam cross members. These are insurance against any amount of sidewall pressure that may cause pinching of the covers. Strongwell covers are never pinched. The ironic thing about this is the fact that this product was actually developed for the same telephone company that is now having problems with the fiberglass box. They switched after going out for bids and getting a slightly cheaper price for the other product.
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