H2Flow Controls FlowVis FV-15-U Flow Meter with Check Valve, Velocity Scale and Union Fittings for 1.5 in. Schedule 40 Pipe, Scale in GPM

The H2Flow Controls FlowVis FV-15-U is a flow meter for 1.5 in. schedule 40 PVC, supplied with union fittings and a built in check valve. It reads in gallons per minute on a clear velocity scale and needs no calibration once it is in the line.

Accuracy without the straight pipe

FlowVis is rated at 98.1% or better accuracy across the range, and unlike most flow meters it does not depend on long straight runs to get there. It can go in horizontally, vertically or upside down with little to no straight pipe on either side, which is why it is the meter pool professionals reach for on a tight pad.

Two fittings in one

The 1.5 in., 2 in. and 2.5 in. models double as check valves, so the FV-15-U can replace an existing 1.5 in. check valve rather than adding another fitting. The union connections make it simple to install and to pull for service.

Certified and upgradeable

It is NSF 50 certified and the first pool and spa flow meter certified for outdoor use. If you later want a digital readout, the FV-D upgrade fits every FlowVis model. Manufactured in the USA.