The Cleaning Cartridge for the Echo 9, 9 Ultra, and 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 for the Echo 9, 9 Ultra, and H2, 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. (Your model no. is located on a silver plate on the back of the machine. If you have trouble knowing which machine you have to select above, ask the chat!)