FlowVis Flow Meter & Check Valve Combo – FV-C / 566821

The FlowVis Flow Meter is the most advanced, affordable, and reliable precision flow meter designed specifically for pools, spas, fountains, and water features. But FlowVis is more than just a flow meter; it’s also a fully functioning check valve! Ingenious in concept and flawless in operation, FlowVis is a revolution in reliable flow measurement.


  • Alternate part number: 566821
  • Installation flexibility. Installs horizontally, vertically, or even upside-down.
  • No requirement for 15x straight pipe diameter.
  • The average accuracy of 97.9%.
  • NSF 50 for FlowVis model FV-C.
  • Clear, easy-to-read scale in GPM or optional LPM with critical velocity points (FPS).
  • Installs quickly and easily with no calibration required.
  • Manufactured in the USA.
  • 5-year manufacturer breakage warranty.