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Ocean Free Spare BioTrap Sponge (Hydra Filtron)

350
Replacement filter sponges intended for use with the Ocean Free Hydra Filtron external filters. This Foam Pad captures large particles
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OceanFree Spare Fine Filter Wool Sponge (Hydra Filtron)

500
These Ocean Free Hydra Filtron White Filter wool set are specially designed for Ocean Free Hydra Filtron external canister filters.
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