Photo 1 of 30008571A Water Flow Sensor Replacement - Compatible with Navien NPE (A) Series Tankless Water Heaters - Not for NPE-240A, NPE (S)/NTI GF200 Series

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Photo 1 of 30008571A Water Flow Sensor Replacement - Compatible with Navien NPE (A) Series Tankless Water Heaters - Not for NPE-240A, NPE (S)/NTI GF200 SeriesPhoto 2 of 30008571A Water Flow Sensor Replacement - Compatible with Navien NPE (A) Series Tankless Water Heaters - Not for NPE-240A, NPE (S)/NTI GF200 Series