Some companies (e.g. Greenwave Filters) marketing knock offs of the Stetzerizer Filter are claiming their filters are better than Stetzerizer Filters at reducing dirty electricity. We will prove their claims are false, and raise some important points about how these knock off filters just don’t measure up in comparison to Stetzerizer Filters. If your choice for dirty electricity filters has come down to Stetzerizer vs Greenwave, watch this short video first for some important information you need to know about Stetzerizer knock offs.