iSpring F9D 1-Year DeIonization Replacement Filter Set Fit RO/DI Water Filter System for Aquarium, 2.5" x 10"

1-Year Water Filtration Replacement Pack: This pack contains individually wrapped high-capacity filter replacement cartridges designed for RO/DI water filter systems, providing a full year of filtration. The pack includes 9 filters: 2x sediment filters, 2x granular activated carbon filters, 2x carbon block filters, 1x post-carbon filter, and 2x DI filters. Individually Sealed for Freshness: Each filter is individually wrapped to ensure maximum freshness and optimal performance. Efficient Deionization Filtration: The deionization (DI) filter effectively removes hard water minerals, reducing TDS levels to 0-1ppm for spot-free drying. It does this by replacing them with hydrogen (H+) and hydroxide (OH-) ions, which combine to form water (H2O). Aquarium & Reef Ready: Achieve ultra-pure water, ideal for aquariums, reefs, and fish tanks, ensuring a safe and healthy environment. Quick-Connect Post-Carbon Filter: The upgraded FT15 post-carbon filter features a secure push-fit connection for easy and fast replacements. For assistance, refer to the user manual or contact our support team