4Pack Felt Filter Socks 4 Inch Ring 100 Micron, 150 Micron, 200 Micron, by 8 Inch Short Filter Bags for Water Aquarium, Pond (4x8 Inch - 200 Micron)

We are recommending these for use in aquariums and ponds but they can also be used in many other applications.These Filter socks provide crystal clear water! Material: High Quality Polypropylene Bag , Plastic Ring Micron rating: Available in 100micron , 150micron , 200 micron Ring width: 4 Inches Length: 8 inches (Long)Package Included: Pack of 4 Application : Chemical Industry Filter paint, paint,ink Aquarium,Water purification Kindly Tips:""Porosity"" is defined by nominal micron ratings (1, 5,10,25,50,75,100,200) indicating the largest particle that can pass through, in general, and reflecting an increase in the density. 1 Micron mesh very small,200 Micron mesh more wider"

• High Quality - This filter sock is made from high quality polypropylene,strong , durable,
• Improve water quality- thick felt filter socks provide excellent mechanical filtration, helps prevent large and small object like sand and coral from damaging aquarium equipment.
• Perfect for using on your return pipe in your sump tank
• Available in 100micron , 150micron , 200 micron Filter Bags
• Suitable for use with aquariums. The ring contains a handle for easy removal and cleaning.