9" 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 aeration efficiency. 
• StableTrak™ technology increases lift velocity
• Comes with a five year, no questions asked Vertex® warranty
  
• Made in the U.S.A.

* The plastic border color has been changed from purple to white, temporarily, due to supplier shortages. 

Technical Specifications