Polishing filter pads for Marineland Canister 360 screens out fine particulate dirt and debris from aquarium water. Also provides a surface for bacterial colonization. Note: Aquarium water is drawn into the canister and through a succession of stacked media trays for full contact filtration with virtually no bypass. When it’s time to service your C-Series canister filter, all you do is push a lever, turn the key, and lift out the easy-access media trays.

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