Common Pond Diffuser Types

Looking for a diffuser for your pond aeration system? 

There are so many options available, but here are our recommendations: 

• Disc diffusers: Have a larger surface area than stick diffusers and often more holes.  Disc diffusers typically create more back pressure, however.
• Membrane disc: Usually a fine bubble diffuser (some medium bubble available) made from EPDM rubber.  They are easier to clean than an air stone diffuser, but still require regular maintenance and can crack over-time.   
• Ceramic stone disc: Usually fine bubble (some medium bubble available) and the standard go-to for aquarium, koi ponds, and ponds with a large/ dense fish population.  They can typically clog very easily and require constant maintenance. They also need to be replaced more frequently.  
• Stick diffusers: Have smaller surface area, but typically put less pressure on the aeration system and are better for pond mixing.
• Membrane: Usually fine bubble and made from EPDM rubber with the same characteristics as the disc version.  There are some medium pore membrane diffusers.
• Ceramic stone: Usually fine bubble with the same characteristics as the disc version.
• Polyurethane stick diffuser: HIBLOW’s RECOMMENDATION - Medium or course bubble diffusers usually made from polypropylene. They are durable, require little maintenance and rarely ever clog.

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