The Flex~Wave family of tanks is specifically designed for the demands of high capacity R.O. storage or high capacity CT in a small space for chemical treatment applications. Made by Flexcon Industries (one of the leading captive-air diaphragm tank manufacturers worldwide) in Randolph, Massachusetts USA; we use only top quality materials to build the industries longest lasting, most dependable steel and composite pressure, storage and contact tanks. Flexcon is “The Reliable Source” for tanks.