This Echo 9 filter was only used in the first 100 Echo 9 Machines™. It is a great complement to your Echo 9 Machine™ and should be replaced within the recommended timeframe.

The Echo 9 Secondary Filter is a small subsidiary filter used only in the first 100 Echo 9 Machines™. It is recommended to replace this filter at the same time as the Echo Replacement Filter. It effectively removes chlorine and other common contaminants from your water. If you were among the exclusive group of people able to get their hands on the first run of Echo 9 Machines™, this filter is a must have!