inTank Media Basket Fluval Hagen AquaClear 70 Improves the filtration in your Hagen/Fluval AquaClear 70 hang on back filter. Easily installs into filter body. Features a removable shelf. Can hold a heater inside the Filter Floss chamber. Forces water through filtration media and not just around it. Water is forced to hit filter floss first, trapping detritus keeping filtration media clean and the aquarium clear Simple to use, greatly improves the filtration and clarity of your aquarium Made of strong, ultra-durable USA manufactured Acrylic. Media Basket will operate standalone, extra equipment is not necessary