Eheim Air Pump 400L/H Adjustable with Airline Hose & Diffusers

There are three models with a pump outlet from 100, 200 (2 x 100) and 400 (2 x 200) l/h, on which the smallest model has one and the two larger ones both have two individually adjustable air outlets. And they come equipped with one or two EHEIM diffusers.

The air flow can be regulated at each outlet on the pump and also on each diffuser. This allows you to set your own individual bubble effect.

By the way: Vibration dampening rubber edgings contribute to the pump’s quiet operation. The air pump stays still and doesn’t “wander about”. Or you can hang it vertically on the aquarium glass. Specially for this there is a hook.

All our Eheim pumps are Australian-approved 240V air pumps with an Australian plug.

Advantages of the EHEIM aquarium air pump

  • 3 models to fit all common aquarium sizes
  • Very quiet operation
  • Long service life, best quality
  • Airflow adjustable at each air outlet on the device
  • Additional adjustment of the air flow and bubble effect using the diffuser
  • Rubber suction pads to dampen vibration
  • Hook for hanging vertically
  • Diffuser with replaceable pad (Art. 7400030)



  • 1 x Eheim Air Pump 400 - Twin Adjustable Outlets
  • 2 x Eheim Diffuser Airstone (4002650)
  • 1 x 2m Airline Tubing
  • 2 x One Way Check Valve

Eheim air pumps are Australian-approved and come with an Australian power plug.

Brand Eheim
Model # EH3704
Barcode # 4011708370124
Shipping Weight 0.9000kg