Air Stone 4.7 Inch Dome Diffuser for Fish Tank Aquarium Air Pump 101-150 Gallon it performs three functions at

it performs three functions at the same time: water filtration

This pump can be used in saltwater and freshwater setups

These filters allow you to cultivate nitrifying bacteria for superb biological filtration

- One stainless steel blade

Air Stone 4.7 Inch Dome Diffuser for Fish Tank Aquarium Air Pump 101-150 Gallon it performs three functions atMAIN PRODUCT FEATURES: HEALTHIER WATER: This air stone works to create bubbles that will help to oxygenate and filter your water. It will help circulate the water in your tank and create a healthier environment for your aquariums fish and plants. PERFECTLY SIZED BUBBLES: These air stones are made from a quality carborundum material that promotes high density, uniform, more delicate bubbles. These beneficial bubbles are perfect for any aquarium