Dryden Aquamedia AFM NG Filter 25 Pound Bag i0124

AFM ^® is an inert, amorphous aluminosilicate (glass) manufactured by up-cycling post-consumer green and brown glass bottles.

AFM ^® Activated Filter Media is verified to at least double the performance of sand filters without the need for additional investments in infrastructure. AFM® is used for swimming pools, aquaria and aquaculture as well as water treatment applications - for treatment of various sources of water such as ground water, surface water, seawater and waste water.

80% required quantity of sand

example sand =300 pounds afmng =240 pounds approved for drinking water application!!!