DescriptionThe filter bag can be used for various media, such as phosphate removers, nitrate removers, carbon and remover. It prevents filter mediums from spreading and has mesh design for better water flow. Great for bio-balls, activated carbon, ceramic, etc.Features-Color: Black, white. -Material: Plastic. -Size: 15x10x0.1cm/5.9x3.9x0.04inch. - The filter bag can be used for various media, such as phosphate removers, nitrate removers, carbon and remover. - Made from material which is quite durable. - Zipper closure for reusable purpose. - It prevents filter mediums from spreading and has mesh design for better water flow. - Great for bio-balls, activated carbon, ceramic, etc.