Kasco: Fine Bubble Diffusers | Replacement Diffuser for Sub-Surface Aeration Systems | Single Diffusers for Your Backyard Pond

Exactly what you would expect from Kasco Marine, excellent quality, excellent durability. This fine bubble diffusers will support any aeration system for years of reliable service time.  Easy to assembly and deploy. These diffusers will not disappoint.  Select from the original Kasco RobustAire diffuser or the New - Home Series Diffuser for a more economical bubbler head for your system.