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Aquascape Pond Air (G1) Replacement Diaphragm Kit
This weighted air stone is an official replacement for Aquascape aeration systems, and works with both 2-stone and 4-stone aerators. When aerators lose some air flow over time due to clogged outlets, these inexpensive and easy-to-install replacement stones are the best fix. They are sold individually.
Replacement weighted air stone for the Pond Air 2 and 4. The 4" aeration disc is more durable and provides better circulation than a typical aeration ball.