Materials: Plastic + Sponge Unique eco-friendly design and noiseless filter operation, let your beloved fish live in the wild, easy freely Works great for get your aquarium water super clean and clear Easy to use: just install an air hose and an air pump in the unit. The water outlet tube on the sponge filter is adjustable so you can change the direction and height of the water flow The filter series is a high performance filter that can be used in a wide range of areas, including saltwater fish, food fish and ancient fish. Biochemical Aquarium Filter Sponge Air Pump up to 60 l, black Product description: Materials: plastic + sponge. Unique eco-friendly design and noiseless filter operation, let your beloved fish live in the wild, easy freely. Works great for keeping your aquarium water super clean and clear. Easy to use: just install an air hose and an air pump in the unit. The water outlet tube on the sponge filter is adjustable so you can change the direction and height of the