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Dr. Dryden's Activate Grade 1 Fine Filter Media
Activate is a glass filter media designed to provide you with clearer, cleaner and healthier water. The proven activation process makes this product scientifically better than all other glass filter media and far superior to sand media.
Here are 3 reasons why Activate Filter Media works better:
1) Ultrafine filtration for CLEARER water
Created 300 times more surface area for superior filtration down to 4-5 microns.
2) Negatively charged filter media for CLEANER water
Attracts and captures harmful bacteria like a magnet.
3) Self-sterilizing surface for HEALTHIER water
Prevents the growth of bacteria and algae by inhibiting reproduction.
This works so much better than sand, and we use fewer chemicals. I'm a believer! John Oct 15 2016