SuperFish Ceramic Air-Stones are long-lasting and versatile. Made from high quality, refined ceramic compound, they last longer than sandstone air stones, and provide very fine aeration.
• Suitable for fresh and saltwater ponds and aquariums; compatible with all good air pumps.
• Can be connected with 4mm or 12mm airline.
• Approx 100mm / 4” in diameter across the ceramic face, surrounded by black plastic to help prevent deterioration.