High Temperature Resistance: The filter bag is Resistant to weak acids, strong bases, solvents, oils and water microorganisms, high temperature resistance. Wide Applications: Aquarium filter bag not only help fish or shrimp have a healthy and clean living environment,but also Suitable for aquarium, fish tank, beverages, chemical industry, etc. Practical and Versatile: 45x18 cm/17.72x7.09 inch filter bag with 7 inch diameter plastic ring for most sink brackets for easy suspension and all filtration needs. The filter sock helps fish or shrimp have a healthy and clean life surroundings. Clean Water: Aquarium filter bag can effectively improve the quality of aquarium tank water, can perfect trap uneaten food, waste excreted by livestock, decaying plants, detritus, dust, and other floating particulates. Reusable: Rugged construction and heavy stitched filter socks are rugged and therefore can be cleaned and reused several times.