H2Flow FlowVis Flowmeter 4" | FV-4
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Highlights
4"
Agility Size
FV-4
MFG Number
6 lbs
Weight
H2flow
Brand
EA
Unit
FlowVis
Series
Product Description
FlowVis FV-4 is a mechanical flow meter designed for 4" Schedule 80 PVC pipe to measure water flow in pools, spas, and circulation systems. It features a clear GPM scale with an integrated velocity scale and is certified to NSF 50 for use in treated water applications. The meter installs in-line in horizontal or vertical piping and is intended for accurate field monitoring without electronic power.
Key Benefits
- Installation in horizontal, vertical, or inverted piping
- Accepts minimal straight pipe runs without affecting accuracy
- Measured accuracy ≥98.1% across the model range
- Clear GPM scale, optional LPM or m3/h available
- NSF 50 certified for use with treated pool and spa water
- Optional digital upgrade (FV-D) for electronic readout
- Models available for 1.5"–8" and DN80–DN200 metric sizes
Specs
Brand
H2flow
MFG Number
FV-4
Agility Size
4"
Series/Model
FlowVis
Manuals & Documents
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Our team includes Certified Pool & Spa Operators (CPO) trained by the Pool & Hot Tub Professionals Association.