The Neptune Systems 1/2" Flow Sensor with Unions is pairs with your Flow Monitoring Module and your Apex unit to measure water flow. It's perfect for use with aquarium accessories like reactors and carbon/GFO filters and can help you determine if your flow rate is where it needs to be, making it easier to determine if your pipe is dirty or clogging with any kind of debris.
It can be placed in line with the flow on any pipe and connected to the Flow Monitoring Module, then it will communicate to you’re 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.