Carbon Steel Welded Tank – Custom Insulated built to your specific engineering designs and application-specific, each tank meets all regulatory requirements including AWWA, NFPA22, CBC2010, and NSF61. each tank has numerous options for appurtenances and fitting options, the interior NSF61 with wastewater epoxy coatings which will offer extended life for this durable tank and even comes in an exterior with numerous colored epoxy options.