AQUATOP BREZA Series of aquarium of air pumps gives aquatic creatures the oxygen they need to thrive. The BREZA AP-40 handles tanks from 5 to 50 gallons. This economical but sturdy pump adds air bubbles, creates current, and agitates the waters surface to help promote gas exchange. The BREZA Series will also help maintain stable and healthy pH levels inside your aquarium.
Features:
Very low energy consumption 
High air flow output 
Super quiet operation 
Max psi at 2.90 
Suitable for aquariums up to 50 gallons 
For both fresh and saltwater use.
Specs:
Tank Capacity: 5 - 50 Gals
Number of Outlets: 1
High/Low Switch Setting
L/Min: 2.5
Pressure Max: 2.90 psi
Wattage: 3W