Diesel, UL 2085, UFC 79-7 and NFPA Compliant; 6,000 gal. capacity; Environmentally Safe, Vaulted, Over Spill Container, Emergency Vent, 2 in. Stack Vent, Leak Gauge, 2 in. Anti-Siphon Valve, Skidded; Steel with Concrete, Insulated, 6 in. Walls having 2- h…