Oxygen pump 1L to 9L per min

The air pump must be placed above the Water level.
The valve can be placed anywhere.
Regularly clean or replace the oxygen tube to maintain a steady oxygen output.
Do not put the air pump in the water.

Specifications
Material plastic

Model AIR-1000
Power 2W
1 hole
Not Adjustable air volume
Airflow volume 1.2L per min
Water capacity up to 50L

Model AIR-2000
Power 3W
1 hole
Not Adjustable air volume
Airflow volume 1.8L per min
Water capacity up to 50L.

Model AIR-3000
Power 3.5W
2 hole
Not Adjustable air volume
Airflow volume 3L per min
Water capacity 50L to 300L

Model AIR-4000
Power 4W
2 hole
Adjustable air volume
Airflow volume 4.5L per min
Water capacity 50L to 300L

Model AIR-8000
Power 8W
4 hole
Adjustable air volume
Airflow volume 9L per min
Water capacity 100L to 800L

Notes:
The real product colors may be slightly different from what you see in the images.
The product dimensions may be slightly different from what is written in the product specifications.