An air diffuser or membrane diffuser is an aeration device typically in the shape of a disc, tube or plate, which is used to transfer air and with that oxygen into sewage or industrial wastewater. Oxygen is required by microorganisms/bacteria residents in the water to break down the pollutants. Diffusers use either rubber membranes or ceramic elements typically and produce either fine or coarse bubbles.
The fine Bubble membrane disc diffusers are compression molded and made with less than 10% extractable oils to ensure strength and longer product life. The base and retaining ring are designed to seal tightly and made of polypropylene having properties of higher temperature resistance and greater ductility. The membrane has an integral O-ring seal which is tightly compressed by the retaining ring keeps water out and air inside. The disc diffusers offer a perfect balance of high oxygen transfer and modest headless with small bubble size as required.


  1. High shelf and service life
  2. Very fine bubble aeration
  3. Efficient oxygen transfer rate
  4. Non-clogging
  5. Low maintenance
  6. Good Mechanical strength
  7. High temperature resistance


  1. Waste water treatment
  2. Effluent treatment plant
  3. Aeration