POND PUMP SPECIFICATION: Maximum flow rate: 1500 liters/hour; Power: 25W; Power cable: 1.6 meters; Nozzle size: 12/16/18 mm. Different nozzle sizes can achieve different cleaning efficiencies. Our submersible pumps are small and compact, a perfect combination of efficient water pumping and ease of use. THERMAL PROTECTION: The aquarium submersible pump has a built-in intelligent thermal protection chip, which protects the small aquarium pump from damage caused by dry fire, so you no longer have to worry about the lack or absence of water in the tank during a short trip. Note: It is best to avoid dry fire. Once the pool pump has activated the overheat protection, it must be plugged back in to work again. Quiet: The aquarium drain pump makes very little noise. The ceramic shaft operates almost silently, and the internally sealed motor and non-slip base further reduce vibration and noise. In addition, the aquarium water pump is equipped with an ergonomic handle that makes it easy to use.