The Neptune Systems Flow Sensor 1/4" (FS-25) is a flow sensor suitable for 4mm pipes. The FS-25 is typically used with aquarium accessories such as RODI inlets, calcium reactor feed lines, etc., and can be placed inline with the flow on 1/4″ pipes. When the FS-25 is connected to the FMM, it can communicate the flow rate of the water to your Apex. The FS-25 uses push-fit connectors to make connecting to your system as easy as possible. The FS-25 works with flow rates of 3-12 gph.

*Must be connected to the FMM module

• Connection plug: jack-plug