Excellent quality grey/blue air stones, hardened with an aluminium alloy at high temperature (1300°C). The stones are very porous and produce very fine air bubbles for optimal aeration. Corrosion-free and shock-resistant. Suitable for oxygen, air, seawater and ozone in ponds, aquaculture, ozone generators and medical applications.
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DY 102-A Air Disc 200ml Dia (Budget)
£17.33
