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Eheim Air Pump 400

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Eheim Air Pump 400Eheim 3704 Air Pump 400 Adjustable Twin Outlet

Price £46.20£37.99Save: 18% off

Loyalty points 75

Eheim 3704 Air Pump 400 Adjustable Twin Outlet

The air flow can be regulated at each outlet on the pump and also on each diffusor. 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.


  • Continuous ultra-quiet operation
  • Air flow level adjustable on pump
  • Air flow level and appearance adjustable on Eheim diffusor
  • complete with diffusor (2x) and air hose (2m).
  • 400 (2x 200) l/h
  • Max Height 2m
  • Power 5w
  • Dimensions 152 x 89 x 71 mm



Ref: 4011708370094 Shipping Weight: 1kgs Stock Status: 1 Units in Stock Manufactured by: Eheim
Product Reviews
5 out of 5 stars
5 out of 5 stars Tuesday 22 November, 2016 By Steve Clark
Best air pump I've had in many years. Very solidly built, extremely quiet and powerful. I'm running 4 internal corner filters and two air diffusers off one 400 lph pump and there is more to spare.
5 out of 5 stars Thursday 19 January, 2012 By Gerard Dugdale - See all my reviews
This pump is quiet, small and very powerful. Best air pump I've had.
5 out of 5 stars Friday 04 November, 2011 By Lucas - See all my reviews
Superb air pump, very quiet too. The best thing about it is the ability to hang it on a picture hook on the wall, which makes it even quieter, has been running for about 6 months without a glitch.
5 out of 5 stars Friday 13 May, 2011 By carl butterley - See all my reviews
extremely quiet,one of the best pumps ive come across,
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