Manufacturer of Tank: N/A Year built: N/A Size of Tank: 4,000 Gal. Type of Tank: Double Wall Steel with concrete insulation UL Rating: 2085 Any Issues (Leaks, etc.): N/A Additional Equipment: Stairs included Related products SoldUsed Tank & System Market Place3,000 Gallon Single Walled Tank SoldUsed Tank & System Market Place(2) 25,000 Gallon Tanks SoldUsed Tank & System Market Place10,000 Gallon Tank w/ Containment