4pcs Aquarium Filter Media Bag, Fish Tank Ultra Fine Mesh Bag With Cord 150 Micron Aquarium Mesh Bag For Fine Resin, Ceramic Ring (21cm X 8cm)

For most filters: Size: 21cm x 8cm wide Perfect fit for fine or wide aquarium filter media, such as peat pellets, purigen, fine activated carbon, organic balls, zeolite, ceramic rings, crushed coral, etc. Extra fine mesh bag: hole size: 0.15mm Nothing can pass through the net except water. Well sewn with soft yet strong nylon, the aquarium filter bag is wear-resistant and reusable. It can be used in freshwater and saltwater aquariums. [Suitable for Multiple Filters]Aquarium filter bag suitable for various filters, such as cartridge filters, electric filters, pond filtration systems, etc.Connect all filter media together to keep your aquarium clean. Practical drawstring: Close the aquarium filter bag tightly with the practical drawstring. It always wraps the filter media inside without them escaping. It is convenient to open or close the bag to easily replace materials. Washable and safe: The white mesh filter bag withstands regular washing. There is no risk of discolouration that would contaminate the water. Trustworthy to keep fish healthy at all times and reliable for long term use. ...