Additional information was added.Additional information/correction:catalog number, manufacturer,pma/510k #.Address: (b)(4).The device was received for evaluation.Visual inspection did not identify any abnormalities that could have contributed to the reported condition.Pressure testing and clear passage under water testing were performed with no issues noted.The set was primed, and backflow functional testing was performed.The device primed normally and worked per specification with no backflow noted.The reported condition was not verified.Should additional relevant information become available, a supplemental report will be submitted.
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