The Fluval G-Series Advanced Filtration System sets a new standard for aquarium filters by offering a unique combination of aesthetics, monitoring capabilities and performance features. The result of this innovative biological aquarium filter is clear water that will allow you to enjoy pristine views of your aquarium. The Fluval G-Series Advanced Filtration System is unparalleled as a mechanical, chemical and biological aquarium filter. The mechanical aquarium filter and the chemical filter media are housed in cartridges which are directly accessible from the top of the filter. Both the chemical and mechanical aquarium filter can be cleaned or replaced without the chore of disassembling the whole filter. Changing or maintaining each cartridge is now quick and mess free. This aquarium filter also offers versatility and control in managing water characteristics. It incorporates a distinctive and intelligent monitoring system that provides a continuous performance overview displayed on the LCD panel. With just a glance, you can check on any number of water characteristics and parameters, ensuring that your aquarium remains at the levels you desire. The Fluval G-Series Advanced Filtration System also provides long-term reliability, virtually zero noise and high performance filtration. Its contemporary and innovative cubic design combines enormous filtration capacity with an extended contact time. Due to its compact shape, this mechanical aquarium filter can be housed in almost any aquarium cabinet, out of sight and out of mind. Other ease-of-use features include an efficient primer, a clog-proof intake strainer, two return options and large capacity filter baskets for highly efficient biological filtration. Each system also comes with AQUASTOP valves that enable you to handle routine maintenance without breaking the system’s vacuum and disassembling the hoses. In total, the G-Series filtration system is a performance biological aquarium filter designed to do its job quietly and effectively without a lot of complicated and time-consuming upkeep. The less time you spend assembling and disassembling your filter, the more time you can devote to enjoying all the activity taking place within your lush and relaxing aquarium.