Pro Clear Aquatic Systems Sock Canister Replacement Aquarium Filter Media for EcoReef Sump Pump - 4 Inch

Pro Clear Aquatic Systems 4″ Sock Canister – A specialized filter accessory that replaces traditional filter socks in Pro Clear EcoReef sumps. This 4-inch sock canister houses a removable sponge (included) to catch debris and offers space for additional media. The innovative design allows easy removal and cleaning of the sponge via an included handle, making maintenance simpler. By capturing detritus and providing a place for beneficial microbes to colonize, the sock canister improves water clarity and biological filtration while eliminating the hassle of frequent sock changes.