High Quality MaterialsThe aquarium air stone is made of sturdy and durable sand stone and stainless steel material, been burned at high temperature, good air permeability, it is safe, washable and durable, non-toxic materialto keep fish healthy and active, can be cleaned repeatedly and used for a long time.Unique DesignThe bottom of the aquarium air diffuser is a flat bottom and the top is a semi-ellipse. This design of the hemisphere shape combined with the weight of the air stone can cause the air stone to produce much more bubblesand stably transport oxygen in water and promote air circulation in the water tank.Oxygen Aeration StoneIt produces even bubbles in water and increases dissolved oxygen, which can provide enough oxygen for fish and other aquatic organisms. Used in conjunction with an oxygen pump, thebubbles are evenly dispersed, and the effect of dissolved oxygen is good.Easy to CleanAir stone disc can be used for a long time, just attach the air hose to the air inlet and place it where you want.If the oxygen is reduced, you just need to gently brush the surface of thebubble stone with a brush.Widely Used Air Bubble Stone is very suitable for use in freshwater, saltwater aquariums, hydroponics or in fish farms, aquatic cultures. It is not only practical, but also pleasant.createsamazing beautiful underwater scenes. Just connect the aquarium air pump.The air stones are made of high quality non-toxic mineral material. With high temperature sintering, the stones are sturdy and durable, have high dissolved oxygen, and produce uniform and tiny bubbles insteadof a limited number of large bubbles.Features:1.Weighs enough to sink into the ground without suction cups.2.Dissolve more oxygen in water.Create quiet, smooth, dense small bubbles in water.Strong filtration for fresh and salt water.3.Clean them regularly with a brush as they get clogged after weeks or months of use. Replace the stone once it stops working properly.Specification:Condition: 100% Brand NewItem Type: Bubble StoneMaterial: Mineral sand stone + stainless steelColour: blue-greyBottom diameter: 6 cmPackage includes:1 * for Aquarium Air BubbleDirections:1. Connect the air hose to the air stone2. Soak the air stone in water for 15 minutes before use3. Turn on the air pump switch to useNote:1.Soak the product in water for 15 minutes before using.2.Please allow 1-2cm error due to manual measurement.3.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
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