Marina Polywool Filter Material; Available in 3 sizes

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Designed to effectively trap fine particles, Marina Polywool filter material keeps aquarium water clear and prevents filter clogging. Suitable for fresh or salt water aquariums, th is non-toxic media polishes water and makes it ultra clear. Ideal for use in clip-on, canister and corner filters.Sizes available: Polywool, 15g (0.5 oz) Polywool, 40 g (1.4 oz) Polywool, 100 g (3.5 oz Show more