Maintain quality with these Alumina Airstones

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Be sure to have the best air quality for your water garden or koi fish pond. These airstones produce fine bubbles, which increases the effectiveness of the aeration process without increasing pressure. These pieces are dense and self-weighting, and cleanable with muriatic acid or chlorine.

• Width is 1/2 inch
• Lengths are 1/2 inch, 3 inches, 6 inches, 9 inches, and 12 inches
• Barbed inlets from 3/16 inches to 3/8 inches or 1/2 inch NPT inlets