H2Flow FlowVis High Capacity Flow Meter for 3" Sch 80 PVC Pipe | FV-3
H2Flow FlowVis High Capacity Flow Meter for 3" Sch 80 PVC Pipe | FV-3
H2Flow FlowVis High Capacity Flow Meter for 3" Sch 80 PVC Pipe | FV-3
H2Flow FlowVis High Capacity Flow Meter for 3" Sch 80 PVC Pipe | FV-3
H2Flow FlowVis High Capacity Flow Meter for 3" Sch 80 PVC Pipe | FV-3

H2Flow FlowVis High Capacity Flow Meter for 3" Sch 80 PVC Pipe | FV-3

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FV-3
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About This Item

The FlowVis Flow Meter FV-3 for 3″ Schedule 80 PVC is 98%+ accurate, reliable, easy to install and NSF 50 certified, with Tee Fitting Type.  See comparative product line list below.

Ingenious in concept and flawless in operation, FlowVis® flow meters have been revolutionizing the way flow is measured in pool and spa applications since their inception in 2012.

With unrivaled accuracy, greater installation flexibility, and more NSF 50 certified models than any other brand, it’s easy to see why FlowVis® is the flow meter of choice for pool and spa professionals everywhere.

Features and Benefits

  • Installation flexibility; installs horizontally, vertically, or even upside-down
  • Can be installed with little-to-zero straight pipe requirements with no effect on accuracy
  • ≥98.1% accuracy across the entire model range
  • Models available for 1.5" - 8" and metric units for DN80 - DN200
  • More NSF 50 certified models than any other brand of flow meter
  • The first and only flow meter for pools and spas to be certified for outdoor use
  • Clear, easy-to-read scale in GPM or optional LPM or m3/h
  • Installs quickly and easily with no calibration required
  • Manufactured in the USA
  • 15-year design life, 3-year warranty

Video about H2Flow's FlowVis Flowmeters:

Other FlowVis Models

Also known as: FV3

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H2Flow Pool & Spa Circulation and Sensors

About H2Flow Pool & Spa Circulation and Sensors

Founded in 1999 and rebranded in 2009, H2Flow Controls has established itself as a global leader in the "brains and veins" of pool systems. Based in Sylvania, Ohio, the company specializes in high-precision technologies that monitor, protect, and measure pool health. They are perhaps best known for the revolutionary FlowVis, which is widely considered the most accurate and reliable flow meter in the industry. H2Flow’s philosophy centers on the idea that "you can't manage what you can't measure," providing homeowners with the data needed to maximize energy efficiency and equipment lifespan. Whether it’s their wireless water leveling systems or their NSF-certified flow meters, H2Flow products are engineered to take the guesswork out of pool ownership, ensuring your equipment room runs with professional-grade precision.

Why We Trust H2Flow Pool & Spa Circulation and Sensors
Precision Engineering: Home to FlowVis, the world’s only NSF 50 Level 1 certified flow meter with 98.1% accuracy.

Safety First: Pioneers in anti-entrapment technology (PSP20) and automated water leveling to prevent pump damage.

Energy Optimization: Specializing in technologies that help users "dial in" variable speed pumps to the lowest effective flow rate.

Reliable Longevity: Products designed in the USA with a focus on durability, often featuring 15-year design lives and robust warranties.

More about Pool Flowmeters for Circulation Monitoring

Complete Your Pool Care Routine

Essential Pairing
Pool and Spa Pumps & Motors for Reliable Water Circulation

Matching a flowmeter with a variable speed pump allows you to dial in the exact RPM needed for your pool's turnover, maximizing your energy savings.

Shop Pool and Spa Pumps & Motors for Reliable Water Circulation
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Filter Cleaning Chemicals for All Types of Pool & Spa Filters

Monitoring your GPM via a flowmeter is the most accurate way to tell when your filter cartridges are dirty and require cleaning.

Shop Filter Cleaning Chemicals for All Types of Pool & Spa Filters
Pro Tip: Don't Forget
Pool & Spa Filter Media for Best Filter Performance

If you still lack flow, it may be time to replace your filter media, as even cleaning chemicals have a limit.

Shop Pool & Spa Filter Media for Best Filter Performance

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