[3 in 1 Functionality]:This aquarium filter combines a submersible pump,oxygenation pump,and built in filter in a device.It provides efficient filtration to thoroughly purify your aquarium environment [Adjustable Air Output]:The fish tank pump's air output can be adjusted by rotating the PVC hose connector,allowing you to control the amount of oxygen produced.This thoughtful design ensures ideal oxygenation for your aquatic pets [Enhanced Filtration]:The filter comes with a cotton pad where nitrifying materials can be added to promote generation of the digestive system,further enhancing the purification process in your aquarium [Easy Maintenance]:The bottom of the fish tank filter casing is detachable for easy cleaning.Additionally,it features a netted water inlet to prevent small fish from being sucked into the filter [Material and Size]:Made from quality pp material for durability and longevity.With Aquarium filter for dimensions of 75mmx38mmx113mm/2.95inch x 1.50inch x 4.45inch,it fits comfortably within your aquarium without taking up too much space, Weight: 0.35053499658 pounds, Manufacturer: POXZSFX