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Swell 1 inch Airstones now come in a 2 pack and are excellent quality ceramic airstones at a great price. They favour well in price compared with other leading brands, but give you the same reliable performance. Only available here at Swell.
Swell one inch airstones are made from high quality sintered ceramic. They are very durable and can be washed.
The shape of this airstone means that a curtain of bubbles is emitted. This not only looks lovely in the aquarium but also helps the aeration and circulation of the water. This stops the formation of any stagnant spots of water.
Connect to standard 4mm airline for a fine mist of bubbles.