Head to head
EHEIM compactON 600 vs EHEIM compactON 2100
Our pick
EHEIM compactON 600
For turning the flow down to suit the tank
Why this one
- Choose the compactON 600 for an underwater return when you need to adjust the flow mechanically to suit the circuit.1
Product photographs. Not to scale.
What EHEIM compactON 2100 offers
Choose the compactON 2100 for external installation with manual flow adjustment. Its maximum head is 2.4 m at 50 Hz; use the curve to check output at your lift.23
2 models / at a glance
Key differences
What differs
| Specification | EHEIM compactON 600 | EHEIM compactON 2100 |
|---|---|---|
| Flow rate | 600 l/h4 | 2,100 l/h6 |
| Maximum head height | 1 m (Tested configuration: 50 Hz)5 | 2.4 m (Tested configuration: 50 Hz)3 |
| Power draw | 7 w (Tested configuration: 50 Hz)5 | 38 w (Tested configuration: 50 Hz)3 |
| Mounting | Submersible only1 | Both2 |
More details
| Specification | EHEIM compactON 600 | EHEIM compactON 2100 |
|---|---|---|
| Adjustable flow | Yes1 | Yes3 |
| Ceramic bearing | Not published | Yes3 |