  Discard-a-Stone Airstones - Coarse - 6 pk
Lee's Discard-A-Stones are disposable air diffusers with reusable airline inserts. They are an excellent aeration device for use in undergravel filters, corner filters or just as decorations. This is a six pack of the Coarse Discard-A-Stones, which produce the calmest stream of bubbles, perfect for fishes or filters who don't need/like a lot of water agitation.
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