Aquarium Filter, Quiet Anti Backflow Design Bio Sponge Media For Nitrifying 30g Lightweight with Suction Cup For Freshwater Saltwater Fish

Simple designed, easy for installation and , convenient to use. Biochemical cotton multi-layer designed, with lots of area to filter impurities and culture nitrifying. Equipped with strong suction cup, not easy to fall off. Condition: 100% Brand New Item Type: Filter Material: Plastic + Sponge Color: Gray Suitable Range: Aquarium, Fish Weight: Approx. 30g Suction Cup Diameter: Approx. 3.6cmCelsius1.42inch Biochemical Cotton Diameter: Approx. 3.9cmCelsius1.54inch Using instructions: 1. When using this product, it is necessary to connect the pump. It is recommended to use stop valve on the pipe to prevent water from flowing back to the pump 2. When cleaning filter cotton, use water from the to prevent the formation of nitrifying.