The Fluval U4 Underwater Aquarium Filter is a high-quality power filter designed for all water types. It features an internal ceramic media casing holder that efficiently filters water and maintains a clean and healthy environment for your fish. With the trusted Fluval brand name, you can be assured of the durability and effectiveness of this filter in keeping your aquarium water crystal clear and safe for your aquatic pets. Fluval U4 ceramic media holder/container. Used but in great condition.
eBay