The ChloraGuard Catalytic Carbon Chloramine Removal Filter Cartridge is unsurpassed for removing Chloramines in municipal water supplies that are disinfected with Chloramines. More and more water treatment facilities have turned to Chloramines as an alternative to straight chlorine - Chloramines are a combination of Chlorine and Ammonia. Unlike straight Chlorine, which can be removed fairly easily, Chloramines remain in the water longer and are much more difficult to remove. ChloraGuard filters offer a unique carbon blend that delivers exceptionally low pressure drop, high dirt holding capacity, and excellent contaminant reduction. For Kent Marine, Seachem, Spectrapure, and all RO or RO/DI units that use standard 10" cartridges. We have tested replacement cartridges from all manufacturers and believe ours are the best quality available. Features: 1-Micron. No release of carbon fines. Usable temperature range 40 degrees to 100 degrees F - Exceptionally low pressure drop - Manufactured from NSF Standard 61 Certified Carbon - WQA and NSF certified and validated - Chloramines = Chlorine + Ammonia. Regular Filter Carbon Media removes ONLY the Chlorine in tap water and Ammonia is Toxic to Fish, Corals and Aquatic Plants. NOTE: We recommend all carbon cartridges are rinsed prior to use to remove any carbon dust that may be present during cartridge filling and shipping. Chloramine Reduction Capacity > 3,400 gallons @ 0.5 gallons per minute, > 12,920 litres @ 1.9 litres per minute. Item 330399.