HGE1231: Features: -Unique design filters aquarium water through a natural and silent waterfall-Allows you to regulate the water intake and flow-Allows customized filter performance-Media basket prevents "water by-pass", maximizing filtration efficiency-Refiltration system offers superior contact time with filter media-Energy efficient pump lowers operating costs-Quick and easy installation-Filtration volume is up to 7 times larger than comparable filters. Includes: -Includes: AquaClear Carbon, AquaClear Foam and AquaClear BioMax. Options: -Available in multiple sizes. Assembly Instructions: -Assembly required. Collection: -AquaClear collection. Warranty: -2 Year warranty.