Rheem AllClear Water Treatment System

The Rheem AllClear Water Treatment System combats hard water and scale build-up when using a Rheem RTG or RTGH series tankless water heater. Scale build up can lead to reduced water heater efficiency and possible malfunction, making the AllClear system a must in areas with hard water. The unit features a clear housing that allows you to see when it’s time to replace the included cartridge.