This Heatline flow sensor is compatible with Capriz, C series, Solaris, S series, Vizo and Hydroline boilers. Comes with impeller, filter, throttle and O-rings. A flow switch or flow meter has a sensor built inside the pipeline of a heating or hot water system as an important safety mechanism. A switch designed to sense the flow of water communicates information to the boiler circuit board to prevent the burner from igniting when the system runs out of water or is dry. This part fits:C28B242424PCS30 CompactS24 Compact2825C2430PCS30PC24PCS Show More Show Less
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