Keep the air pump above your fish tank water level. If you are keeping it below you fish tank water level, you must use a check valve. Air pumps are useful for tank water aeration and filtration.
| SB-222 | SB-222A | |
| Power | 3W | 3W |
| Voltage | 220-240W | 220-240W |
| Air Flow | 3L/min | 3L/min |
| Outlet | Single | Single |