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 Place12,000 Gallon Double Walled Tank SoldUsed Tank & System Market Place2,000 Gallon Concrete Tank SoldUsed Tank & System Market Place4,000 Gallon Double Wall Tank