Aquatop Fz9 UV replacement coarse filter pads mechanically remove organic particles, foreign debris and excess food. They are suitable for freshwater and saltwater, and are pre-cut to fit the Aquatop Fz9 UV canister filters. Insert is filled with aquatop's own high quality carbon for maximum effectiveness Outer layer is made of a strong Poly fiber to mechanically filter out large dirt and debris Extremely easy to use and install Compatible with Fz9 UV canister Filter Item#: FZ9-RCI

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