Industry leading 1,000+ year usable life span. No other unit comes close!
Tornado SheltersAlleviating most all condensation issues along with the ability to install anywhere!.
Shelter FeaturesRotationally Molded door available in custom colors with a lifetime warranty!
Tornado SheltersThe Granger ISS by Rotational Molding leader, Granger Plastics Company, is the only patented double wall single family storm shelter that offers industry leading features!
Internationally recognized manufacturing leader, Granger Industries has corporate divisions that range from World renown Rotational Molding leader, Granger Plastics to Aerospace innovations with Granger Aerospace Products, America's leading Tornado & Storm Shelters with Granger ISS and Cemetery Vases and Burial Urns with ForeverSafe™ Memorial products, all divisons of Granger Industries, Inc.
Join the fastest growing Tornado Shelter dealership network! With exceptional customer service, a superior quality product and with leading sales & support, see why the Granger Plastics Storm Shelter is the leading Storm Shelter breakthrough in the sector! No other Twister shelter manufacturers offer the features, limited life time warranty, client service and top quality that is supplied by Granger Plastics Company!
Granger Plastics continues to experience great success growing our customer base by continuing to exhibit at a wide variety of Tradeshows! Ranging from industry specific tradeshows, defense & safety product shows, home & garden shows, modular housing shows or even state fairs! Granger Plastics continues to educate and grow its customer base by advertising and marketing at Tradeshows all across the United States! Tornado Shelters are a growing segment of business in a number of markets. With the superior quality of the Granger ISS, take your business to the next level by becoming an authorized Granger ISS dealer!
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