EHEIM Air pump 100, 200 and 400 supply air stones, air-driven filters and other suitable aquarium equipment. The models differ in air output and equipment and should be selected for the aquarium, application and number of connected devices.
Allow for tubing length, water depth, air-stone resistance and the required air volume. The rated output is not fully available at the air stone when tubing runs are long or resistance is high. Installation and regular maintenance also influence airflow and operating noise.
Place the pump in a dry, secure position above the water level or use a suitable non-return valve as specified in the instructions. Check which air tubes, air stones and distributors are included and which items must be purchased separately.