For best results

Part Number 771181

flat shape of the pump cage makes it stable and easy to place in the pond

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Made 100% in the U

Vertex 9" Replacement Diffuser Disc waterfalls For best results9" Vertex, MicronBubble replacement diffuser disc. Fits all Vertex AirStations Diffusers Self cleaning and low maintenance EPDM compound with 100% rebound memory Flexible, long wearing, and clog resistant even in the dirtiest water bodies Highly efficient even during low or moderate air flows FlowControl technology equalizes airflow to each disk Energy efficient die cut perforations with a "Delta" surface pattern increase active surface area and