Savio Springflo Bio-Filter Media is a polypropylene and calcium carbonate ribbon.
The embossed diamond pattern creates millions of dimples to rapidly secure and develop bacteria. Easy to use and maintain, inexpensive, and resists channeling, clogging, and compaction in up-flow and horizontal flow environments.
180 square feet of surface area per box. Fills 2-3 cubic feet.
Each box is enough to filter approximately 1000 gallons.