Air stone (Heavy Ceramic Cylindrical) These high-quality long-life air stones are made from a refined ceramic compound. They produce very fine aeration and can be used in conjunction with any good air pump. These ceramic air stones are perfect for use with your pond or aquarium air pump, connect the air stone with air tube. Soak in the water for 15 minutes before use. Suitable for very large ponds.
These are specially made air stone creates an abundant cascade of small to tiny bubbles rather than a limited number of larger bubbles. These smaller bubbles will be much more effective at moving water through the filter, making the filter more effective and efficient.
Suitable Airtube 4×6 mm