Proportional Injection Systems from Stenner Pump Company are suited for precise dosing proportional to system flow rate, based on water volume. Mounted on a pre-assembled panel consisting primarily of a fixed output pump, dry-contact water meter and pump control module, they are suited for constant pressure (variable speed well pumps, poultry and livestock houses, irrigation or systems with demand-based, back-up wells) and any application with varying flow rates. A dual system is also available.www.stenner.comsales@stenner.com