South Ocean Five filter bag can be used for various media, such as phosphate removers, nitrate removers, carbon and ammonia remover. Nylon bag is actually made from 100-percent polyester with a polyester tie cord. Sewn with a 5-string merrow machine with a full safety stitch inside. It prevents filter mediums from spreading and is made of heavy nylon for better water flow. Measures 4-inch width by 12-inch height.
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