Current Cultures Epicenter’s (also known as the Control Module) are the brains of the system. All flow of water in the system is ran and controlled through this bucket. Made of UV stabilized, solid ABS the Under Current® Epicenter Modules were built to last. The Epicenter Modules come in 8 gallon or 13 gallon sizes and with various parts included to best suit your needs. Manufactured in California. These items are drop ship only.