Description: Multifunction filtrationThe sponge filter provides bio filtration, physical filtration, oxygenation solution for your aquarium fish tank, improve purifying water quality, suitable for freshwater and saltwater.Fine spongeHigh density porous fine sponge, protects baby fish from being sucked into the filter system, ribbing sponges which provide more surface area for the growth of beneficial tiny creatures, traps floating debris and fine particles, keep your fish tank crystal clear and clean.Easy to cleanAll the parts of this filter is detachable, simply remove the sponge from the filter, rinse, and squeezed it in used aquarium water.Easy to useQuiet operation, simply connect the airline tubing to the air pump and connect it to the air inlet of the sponge filter, bubble away, both filtration and aeration in a solution, keep water well oxygenated.Easy to InstallThe sponge filter comes with suction cups so to you can stick it firmly to any position under water, the water outlet can be adjusted up or down. Specification: Material: PP Size Chart: Height: 20.5cm-28.2cm/8.07inch-11.10inchWidth:16cm/6.30inch Package Includes: 1 Aquarium Sponge Filter Note: Please allow slightly errors due to manual measurement and different monitors.