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Most states require NSF Standard 50 certification for filter media to be used in a commercial application. Passing the performance tests for NSF Standard 50 means that NSF certifies that the media actually works and is non-hazardous. Eco-smarte's media is coarser and does not meet the NSF...

Glass as a filter media is a well established and proven technology. Glass is a common filter media in Europe and Australia, and is gaining acceptance in the United States, especially on the West Coast. Yes, I'm biased because I sell Vitroclean, the only glass filter media in the US that is...