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The Evoqua Water Technologies DIGuard String Wound Filter Cartridge is designed for a variety of prefiltration applications such as SDI (service deionization), reverse osmosis, and CDI (Continuous Deionization) systems. FCPS cartridges are composed of string wound polypropylene string over a polypropylene core. Evoqua DI Gard particulate cartridges are manufactured from materials which are listed for food contact applications in Title 21 of the U. S. Code of Federal Regulations.
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