The Cleaning Cartridge for the Echo H2, is a small, one-time use cartridge that releases cleansing citric acid throughout the Echo Water Machine. Roughly the same size as a Replacement filter, and designed to fit in the same filter housing. The citric acid removes any unwanted particles, taste, or build up.
If your machine has suffered from reduced water flow, this will generally solve your problem. It is also recommended as a minimum to clean your Echo Water Machine whenever you replace the filter. Detailed instructions for your specific Echo Machine will be sent with your shipment.