Fine Bubble Aeration Diffusers
Our range of fine bubble diffusers is carefully selected. The fine bubble diffuser features as very unique split and slit pattern. The special design ensures a very fine and well-dispersed pattern of bubbles to create a high oxygen transfer efficiency.
We highly recommend using a looped piping system to supply the diffusers, with each section equipped with valves for airflow control. The design offers greater flexibility in managing oxygenation and water circulation.
The diffusers operate over a spectrum of flow rates.
The membranes require minimum maintenance with an extended surface life.

Fine Bubble Aeration Diffuser Technical Data
| Model | FEPDM215 | FEPDM270 | FEPDM330 |
| Bubble Type | Fine Bubbles | ||
| Size | 8” | 9” | 12” |
| MOC | EPDM & Strengthened PP | ||
| Connection | ¾” NPT Male Thread | ||
| Membrane Thickness | 2mm | ||
| Bubble Size | 1-2mmØ | ||
| Design Flow | 1.5~2.5 | 3~4 | 5~6 |
| m³/hour | |||
| SOTE | ≥38% | ≥38% | ≥38% |
| @ 6m Submerged | |||
| SOTR | ≥0.31 | ≥0.45 | ≥0.75 |
| kg O2/hour | |||
| SAE | ≥8.9 | ≥8.9 | ≥8.9 |
| kg O2/kW.h | |||
| Resistance | 15~40 | 15~40 | 15~40 |
| mBar | |||
| Service Area | 0.2~0.64 | 0.25~1.0 | 0.4~1.5 |
| m²/pcs | |||
| Estimated Life | Estimated 5 Years | ||