Dryden Aqua

AFM® Activated Filter Media is a highly engineered activated filter media made from specific up-cycled colored glass types. AFM® is a direct replacement for sand in any sand filter. AFM® grade 1 is certified to remove more than 90% of 4 micron particles, more than double the fine-particle retention of sand. AFM® surface activation prevents biofouling, improves biosecurity, and stops channeling. AFM® has a minimum service life in excess of 10 years and provides a short pay-back.