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Evaluation Report: <br /> Eljen Corporation <br /> GSF Denitrification System DN450 <br /> - Wastewater Treatment System <br /> Under the provisions of NSF/ANSI Standard 40 <br /> Residential Wastewater Treatment Systems <br /> January 2019 <br /> 15/10/055/0030 This report may not be reproduced in whole or in part Page 1 of 59 <br /> Final Report without the expressed written consent of NSF International January 2019 <br />