XDTKJDZ Aquarium Roller Filter System, Small Fish Tank Roller Filter, For 4-inch Filter Sock Aquariums, Smart Water Level Sensing Auto Roll With Controller, Fits ≤3000l/h Pump Flow

XDTKJDZ

【Split Design Filter Roller】Features a detachable motor frame and filter box design, so you can replace filter fabric without disassembling the whole unit. The automatic roller keeps aquarium water crystal clear by replacing dirty media when clogged, eliminating frequent manual cleaning. Ideal for tanks under 3000L/h pump flow 【Smart Controller with Dual Operation Modes】Equipped with an intelligent control box offering Normal/Efficient modes, plus timeout alarm, manual fabric feeding, pause, and FEED functions. The LED indicators show working status clearly, and the fault alarm alerts you to issues promptly for worry-free operation 【High-Precision Photoelectric Water Level Sensor】The advanced sensor detects water level changes accurately with low failure rate, triggering the roller only when needed. It ensures stable water circulation, prevents overflow, and maintains optimal filtration efficiency for both fresh and saltwater aquariums 【Compact Built-In Motor】The built-in motor design maximizes space efficiency, fitting perfectly into 4-inch filter sock tanks with standard dimensions (total height 45cm, filter section 21cm tall). The honeycomb filter box ensures smooth water flow while keeping debris contained 【Long-Lasting Filter Fabric】Each roll of filter fabric lasts about 1 month, with a new take-up spindle included for easy replacement. The unit is designed for quick installation with clear guidelines, and every package includes all necessary mounting accessories for immediate use