FlowVis™ is the most advanced, affordable, and reliable precision flow meter designed specifically for pools, spas, fountains, and water features. Ingenious in concept and flawless in operation, FlowVis™ is a revolution in reliable flow measurement.

  • NSF approved!
  • Installs horizontally, vertically, or even upside-down
  • #1 Flowmeter on the market
  • Save Energy and Money
  • Clear, easy-to-read scale
  • Doubles as a check valve(Not for 3 & 4 inch)
  • Retro fit option for simple Jandy swap out
  • Flow Rates between 10-110 GPM

SKU: fv

The most dependable variable speed pump flow meter available

FlowVis™ is the most accurate, reliable, and easy to install pool flow meter on the market today. Readings remain accurate in any orientation or position in your water system, even elbow to elbow. Kona Labs is proud to have invented this unit and that we sell it at the cheapest price available online. The space-saving design measures in GPM and conveniently includes scales for key velocity points. This makes it optimal for calibrating a variable speed pump and ensuring you are getting the most out of your energy use.

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.

Technical data:

Warranty: 15-years on design life, 7-years on spring
Approvals: NSF 50 (FV-C, FV-3, FV-4, FV-C-S, FV-C-Saline models)
Power losses: <0.2{11bf2d48038936903545bc919fffcbf66068b4e2daec8be805cb29e3bca8a072} additional motor power over having no check valve

Average accuracy:

97.9{11bf2d48038936903545bc919fffcbf66068b4e2daec8be805cb29e3bca8a072} between 10 – 110 GPM (2″ & 2.5″ model)

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The Importance of High-Quality Pool and Spa Automation

Many novice pool owners assume that a swimming pool, hot tub, water feature, or pond essentially takes care of itself. All you have to do is fill it with water, turn on the pump, and make sure you used enough pool shock to keep the algae out, right? Unfortunately, things are a little more complicated than that.

There are a number of vital steps you must take in order to achieve efficient pool spa automation. Keeping the water at the desired level is one of these tasks you don’t think about. Also, correctly calibrating your pool’s pump is another. A pump that is working too slow will be unable to keep the pool water clean, which will inevitably lead to stagnant water that can be unhealthy to you and your loved ones. On the other hand, a too-fast pump will circulate more water than necessary and spend too much energy, resulting in high water and electricity bills.

This is where a flow meter comes in!

What is a variable speed pump flow meter?

A precision flow meter is a device that measures the true flow of water through your hot tub, pool, pond, or irrigation’s circulation system. By correctly measuring gallons per minute, using calibration that’s in accordance with the size of the pipe, it enables you to pinpoint the best speed for your pump.

The majority of precision and low flow meter devices are equipped with an easy way to read the measurement. This can either be a chamber with visual markings or a digital LCD display. This allows even first-time pool owners to successfully and easily set up the right speed for their pump and enjoy a great experience.

How a variable speed pump flow meter works

All flow meters are designed to facilitate pool and spa automation by accurately measuring the amount of water that passes through them. They usually consist of the transmitter, the transducer, and the primary device.

The transducer’s job is to measure the liquid that goes through the primary device. Afterward, the transmitter picks up the measurement and converts it into a readable value that’s shown on the LCD display or in the visual chamber with markings. Flow meters are usually installed directly in the plumbing on a section of pipe that is long & straight.

Other advantages of having a FlowVis variable speed pump flow meter

  • Efficient skimming – skimming efficiency can only be realized at optimal flow rates, which can’t be pinpointed without a correct flow meter.
  • Heater efficiency – knowing the flow rate of your water pump is critical when it comes to optimizing heater efficiency and minimizing operating costs.

Your go-to source for pool and spa automation solutions

Kona Labs is here to provide you with a comprehensive catalog of patented, USA-produced irrigation system, pool and spa automation, and water feature solutions that will minimize your expenses and improve your life. We make and sell renowned products such as the LevelSmart wireless autofill that automatically adjusts your water levels and allows you to monitor them even when you’re far from home.

Our other solutions include the MeterDog water leak detection system which safeguards your pool and your wallet from unnecessary loss, as well as the KonaFlow mechanical water flow meters that offer unparalleled precision and affordability. All products come with a 1-year (or more) warranty and a 30-day return policy.

Finally, Kona Labs also provides best-in-business leak detection & line location services. Our experts utilize noninvasive techniques and scientific processes that enable them to find leaks with unmatched precision.

  1. Rated 4 out of 5

    Michael Geyer (verified owner)

    I absolutely love that I get a very accurate flow reading anywhere I need to place it in the pump room.

  2. Rated 3 out of 5

    @TNPoolGuy (verified owner)

    Finally! A reliable flow meter for pools. Check out FlowVis®.

  3. Rated 5 out of 5

    Kevin Misley (verified owner)

    I’m impressed with its simplicity, accuracy, ease of installation, and the ability to view the actual flow rate clearly.

  4. Rated 4 out of 5

    Chris Bartnikowski (verified owner)

    It is incredibly accurate, it doesn’t get stuck all the time like our old flow meter and best of all, our local DEQ inspector loves it.