 Eheim Air Pumps are an exception Air Pump. Eheim Air Pumps are fully adjustable and provide excellent oxygenation for the aquarium. These pumps offer ulta quiet operation with dual outlets on the 3702 and 3704 units.These units are amongst some of the most relaible air pumps available on the market today.
3701 = 100l/hr
3702 = 200l/hr
3704 = 400l/hr | 
