12-Pack Large Air Stones, Humongous 4 x 2 Inch Round Filter for Aquarium, Hydroponics, Fish Tank, Koi Pond, Cylinder Bubble Diffuser for Pump, Growing System
All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
-Stable in Water: Each cylinder measures 2" D x 4" H and weighs 0.66 lbs. It can easily sink to the bottom and stand stably in your tank for steady bubbles.
-Fits for 3/ 16 inch standard airline tubing.
-Recommended a high-output air pump at least 10W or a commercial air pump.
-Reliable Material: Made from durable and washable silicon carbide. The material is sturdy and durable, it causes no effect on the health of your aquatics. Help keep fish or roots growing healthily.（ Soak the stone completely in water for 2 hours before use; Clean it regularly with a brush as they get clogged after weeks or months of usage）.
-Widely Applicable: Fit for hydroponic systems, ponds, aquariums or fish tanks, and other systems, helping extend the life of your nutrient solution, keep fish/ roots healthy and promote plant growth.
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