ITEM NAME:Mute Aquarium Filter Water Fish Tank Air Pump Skimmer Biochemical Cotton Sponge Product Description Description: Description: An air transport system, super bio-sponge filter function, quiet operation, and good filtering effect, while aerating water, the socially developed foam supports bacterial colonization, which in addition to biological filtration mechanical filtration, which will break harmful waste, Ammonia and nitrite materials lead to your fish in a cleaner living environment, especially for breeding or secondary filters. Features: Suitable for fish tanks from 10cm-80cm/3.94-31.5" deep. Biochemical sponge filter. Biofiltering for aquariums helps to stabilize water quality. Improve oxygen solubility, good gas permeability and easy to clean. Use a suction cup to secure the smooth surface. Provides much needed oxygen to the water. It reduces noise from the air pump and the lowest power consumption. Specifications: Color: as shown Material: sponge + plastic Size: Sponge: 12*6cm/4.73*2.37" Bracket: 23*17cm/9.06*6.7" Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 XÂ Aquarium Filter.Biochemical sponge filter. Material: sponge + plastic. Sponge: 12 6cm/4.73 2.37". Included:1 X Aquarium Filter. Suitable for fish tanks from 10cm-80cm/3.94-31.5" deep. Provides much needed oxygen to the water.