Fireguard®'s secondary containment can be tightness tested on-site with standard testing procedures! Fireguard®'s exterior steel wall provides superior weatherability and low-cost maintenance.  Unlike concrete exterior vaulted tanks, cracking or spalling will never be a problem! Firguard®'s unique light-weight thermal insulating concrete material is 75% lighter than standard high yield concretes. Shipping, installation and relocation costs are greatly reduced! 30 year warranty is standard with every Fireguard®.   Significantly more size options than most competitive brands. Capacities range from 186 to  50,000 gallons. Cylindrical or rectangular design Compartmentalized configurations Ballistics resistant Pad/Foundation designs available for seismic zones 1 through 4.