This is the Fluval U1/U2/U3/U4 Filter Directional Output Nozzle for the Fluval U1, Fluval U2, Fluval U3 and Fluval U4 Internal Filters. Suitable for the Fluval U1, U2, U3 and U4 Internal Filters. The Fluval U1/U2/U3/U4 Filter Directional Output Nozzle is suitable for.
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