2021 Good Quality Fine Bubble Tube Diffuser - Energy-saving Ceramic Fine Bubble Diffuser – Holly Detail:
Product Features
1. Simple structure, ease of installation
2. Tight sealing without air leakage
3. Maintenance-free design, long service life
4. Corrosion resistance and anti-clogging
5. High oxygen transfer efficiency


Packing & Delivery


Technical Parameters
| Model | HLBQ178 | HLBQ215 | HLBQ250 | HLBQ300 |
| Operating Air Flow Range (m3/h·piece) | 1.2-3 | 1.5-2.5 | 2-3 | 2.5-4 |
| Designed Air Flow (m3/h·piece) |
1.5 | 1.8 | 2.5 | 3 |
| Effective Surface Area (m2/piece) |
0.3-0.65 | 0.3-0.65 | 0.4-0.80 | 0.5-1.0 |
| Standard Oxygen Transfer Rate (kg O2/h·piece) |
0.13-0.38 | 0.16-0.4 | 0.21-0.4 | 0.21-0.53 |
| Compressive Strength | 120kg/cm2 or 1.3T/piece | |||
| Bending Strength | 120kg/cm2 | |||
| Acid Alkali-resistance | weight loss 4-8%,not affected by organic solvents | |||
Product detail pictures:

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We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.