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The rubber tubing on these diffusers creates a very fine bubble which improves the oxygen content of your pond water .
These Rubber Air Diffuser are made from EPDM(Ethylene Propylene Diene Terpolymer).
The synthetic rubber which has excellent ozone resistance, heat resistance, solvent resistance and weather resistance
Note
These are for large bore air pipe 8mm (3/8) braided airline.
| Size | Air Flow |
| 250mm | 10-15l/min |
| 510mm | 20-35l/min |
| 760mm | 30-55l/min |
| 1000mm | 40-75l/min |
