Activated Carbon Filter InsertPremium research grade.Adsorbs odors, discoloration, and impurities.Improves water clarity.Safe for fresh and saltwater use.AquaClear Activated Carbon Filter Insert contains 100% premium research grade carbon. Premium research grade carbon provides large amounts of surface area for adsorption of undesirable impurities. Use of the activated carbon filter insert will remove unwanted odors, discoloration, and impurities resulting in a crystal clear aquarium.The AquaClear CycleGuard System Preserves Beneficial Bacteria for a Stress Free EnvironmentProvides Optimal Mechanical, Chemical, and Biological FiltrationCycleGuard ensures that there is never a depletion of beneficial bacteria. Other filtration systems require you to replace the entire insert. The AquaClear system is different. Only one of the three inserts is changed at a time. This ensures that significant amounts of beneficial bacteria always remain, resulting in a stress free environment.Foam and Ammonia Remover Inserts are sold separately.Formerly AquaClear 150.
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