FlowVis 2 x 2.5in. Complete Pool Flow Meter and Check Valve

FlowVis is a combination flow meter and check valve for swimming pools and spas that offers restriction-free installation and guarantees accurate flow measurement. It can be installed horizontally, vertically, upside down, and next to any elbow or other fitting. It features a sleek, a low profile design, measures in GPM's, and includes scales for key velocity points so it's perfect for setting a variable speed pump and delivering maximum energy savings. FloVis offers an average accuracy of 2.01% between 20-110 GPM and is NSF Certified to 50 psi. And since it installs in-line there are no saddle clamps or flat rubber seals to corrode and no calibration is ever required. FloVis is backed by a 5 year warranty.