2 Inch Updated Air Stone Plus Bubble Ball Diffuser for Fish Tank Aquarium Hydroponics Pump, 2 Pack

[MATERIAL]: Made of silicon carbide. [SPECIFICATION PARAMETERS]:Size: 2inch (5cm); Pump power: 4W, Flow rate: 5L/min, suitable for 4mm inner diameter pipe;Package: 2 PCS/pack. [BUBBLE UNIFORMITY]: The air is evenly distributed in the whole stone area to make the bubble size uniform, which is conducive to animals and plants absorbing oxygen. Bubbles size between 300-500 microns. [APPLICATION]: It is mainly used to provide water circulation in aquariums and ponds to increase oxygen in water, which is very important for the health of animals and plants. [ATTENTION]: Before use, put the aeroliths in water for 5 minutes, connect it firmly to the trachea and place it horizontally in the aquarium. Cleaning the air stone surface often will increase its lifespan. If not used for a long time; clean it and keep it dry in the shade.