The FlowVis Flowmeter for 4 inch Schedule 80 pipes has a higher average accuracy than any other flowmeter out there.
FlowVis is the most advanced, affordable, and reliable precision flow meter designed specifically for pools, spas, fountains, and water features. FlowVis offers highly accurate performance and a unique ability to be installed right next to other plumbing fittings such as tees, without the need for long straight pipe runs before and after.
When installed to a variable speed pump application, FlowVis will among other things, allow you to maximize the energy-saving potential, achieve efficient skimming, and reduce chemical costs. When installed to a fixed speed application, FlowVis will help users determine whether a variable speed pump could help them save energy and thereby justify the investment.