– The only flow meter to carry NSF50 (required by CA title 24) – NSF verified average accuracy 97.9% – Install right next to other fittings without the need for straight pipe before or after – Install horizontal, vertical, or even upside-down – Includes check valve function – Includes water velocity indication of 5′,7′, and 9′ per second – Establish correct flow rates for heaters, water features, and chemical feeders – Quickly reestablish correct flow rates after customer tampering – Models for 1.5″, 2″, and 2.5″ pipe – Retrofit kit easily converts existing Jandy or Praher check valves into FlowVis flow meter, or repairs existing FlowVis meters. No plumbing required. – Installing a flow meter with a variable speed pump allows you to use instrumentation to dial in the pump’s optimum speed.