Check the listing for details. Penn-Plax CPF6C3 Cascade Hang-on Power Filter Replacement Cartridges - Pack o.... Condition: New. Listed at 18.98 USD. Penn-Plax CPF6C3 Cascade Hang-on Power Filter Replacement Cartridges - Pack of 1 (3 Count) Product Information Features: - Keep your water clean and clear with a genuine Penn Plax filter cartridge to fit your Cascade 20 GPH Mini hang-on power filter model CPF6. Pack of 3. - Activated carbon is great for freshwater aquarium filtration. It has the ability to remove odors; and water discoloration by trapping the pollutants in the pores of the carbon. - The poly-fiber floss barrier screens out particulate matter and debris keeping the water clean; clear; and healthy. - No assembly required keeping your hands clean. Easily install into interior compartment of your hang on filter. Suitable for freshwater and saltwater tanks. - Perfectly measured to fit into the Cascade 20 filter tray without any gaps preventing debris and contaminants from passing through back into the water. Product Details: - Material: Carbon Fiber - Duration: 12 weeks - Brand: Penn-Plax - Product Dimensions ‏ : ‎ 0.65 x 4.1 x 6.6 inches; 0.8 Ounces - Item model number ‏ : ‎ CPF6C3 - Date First Available ‏ : ‎ April 21, 2016 - Manufacturer ‏ : ‎ Penn Plax, INC. - Country of Origin ‏ : ‎ China INTERNATIONAL ORDERS Our international orders are directly handled by eBay's Global Shipping Program. We are not able to make any changes to the customs forms. In addition, it is up to the buyer to make sure the item will work for their respective country especially for electronic devices. In some cases, a power converter/transformer might be required for electronic devices. Please ask all questions prior to placing the order. In addition, since eBay cannot provide a return label for international orders, it is up to the buyer to pay for return shipping for international orders regardless of reason.