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Spheres - Spheres 1 Gallon - MSRP $61.99 is backordered and will ship as soon as it is back in stock.
Designed for Ammonia and Nitrite Removal
One MarinePure Sphere has the same surface area as 1,350 plastic 1.5" bio-balls.
Use in canister filters, sumps, and wet/dry filters.
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