Neptune Apex Flow Sensor – 1/2″ (FS-50)

Special 10% price match offer for this Neptune product! If you find a lower price in Canada, we'll match it plus give you an extra 10% of the difference. To qualify, the competitor's price must be less than a 2% difference, and the item must be in stock. Refer to our price match policy for complete details. Shop confidently with us!

Usually used with aquarium accessories like reactors, carbon/GFO filters, etc., this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex the flow rate of water through that pipe. The flow sensor itself uses BSPP threads so for North American customers we have included two specially designed PVC adapters with slip fittings to adapt it to standard 1/2″ PVC plumbing. The FS-50 will work with flow rates from 30-250 gph.