General Industries’ Permatank is F-922 (Fiberglass Secondary Containment), UL-58 and UL-1746 labeled and designed for underground storage of flammable and combustible liquids. Manufactured of carbon steel with a FRP jacket, having an interstitial monitoring space; capacity up to 50,000 gallons and available in single or multi-compartments. All General Industries products are fabricated using our ISO 9001:2015 Quality Management System., and carries a Steel Tank Institute third party 30-year Warranty. Permatanks comply with NFPA-30 and International Fire Code requirements. Concrete deadmen and straps are available.