Be confident in your purchase we're an Authorized Simplicity Dealer. How cool is that?!?!? Our DC Pumps are designed to meet the needs of all types of aquariums at a price point that you?ll love. These high-efficiency pumps are extremely powerful and quiet. The included controller gives you the power to control flow at a speed that works best for your tank. And the controller?s ?feed? button lets you pause the pump for 10 minutes. These pumps give you everything you need to get the job done right.