The AquaFX Filter 20x2 1 Micron Poly Blown is designed to provide exceptional filtration for saltwater aquariums, ensuring clean and clear water by trapping particulates as small as one micron. This filter features a multi-layer gradient design that effectively extends its life while maintaining optimal water pressure, making it ideal for use with RO/DI systems and other high-pressure applications. It is made from 100% pure thermal-bonded polypropylene without any binders or solvents, ensuring safety and reliability for both fish and aquarists.