The Dophin Air Pump has an energy-efficient motor and operates quietly. Its modern design has vibration absorbing feet and has a high and lo setting. Air Pumps are used with air stones to oxygenate the water which assists with nutrient uptake. - Safe and quiet operation - Strong & reliable air supply pump - Super Performance and high output
| Model | 5500 | 6500 | 7500 | 8500 | 9500 |
| Power | 2W | 2.5W | 3W | 3.4W | 4W |
| Flow | 1.3L/min | 2.2L/min | 2.4L/min | 3.5L/min | 4L/min |
| Speed | 2 Step | 2 Step | 2 Step | 3 Step | Variable |
| Voltage | 220v AC | 220v AC | 220v AC | 220v AC | 220v AC |