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Using porous fiber cotton material to generate bubbles More durable and less prone to clogging than traditional air stones
Port diameter: standard 3/16 inches (4mm) Hidden plastic inlet port, no need to worry about rust, suitable both for saltwater and freshwater tanks
Weight: S-0.22 pound, M-0.55 pound, L-0.88 pound Heavy enough to sink to the bottom without floating
ABS Plastic disc keeps it from clogging quickly and can be cleaned very easily
Includes Accessories
How to Use Air Stones in a Fish Tank
