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 Fiberglass Radius
 Fiberglass RadiusIf money was no object and you could afford any underground disaster shelter - Radius P10 would be the one. They build them out of structural fiberglass and they 
sell a lot to the DC area (read politicians). A great feat of engineering. Read through the long list of specifications to learn about things you never would have 
considered in constructing your own shelter. 
Offered by Steve.