Marineland Eclipse Ready-To-Use Filter Cartridges for System Three and Eclipse Explorer ()

Custom designed filter for Eclipse System Three and Eclipse Explorer.Preassembled Eclipse Filter Cartridges provide superior mechanical and chemical filtration--screening out dirt as they remove discoloration, odor-causing waste and harmful contaminants.Each disposable cartridge is packed with Black Diamond Premium Activated Carbon--the highest grade there is. Just shake, rinse and install.Horizontal cartridge design and patented ribbed back ensure even carbon distribution and 100% water to carbon contact--no bypass. Makes water crystal clear and clean.For best results, change every two to four weeks.