420 GPH Aquarium Fish Tank Submersible Pump Powerhead Undergravel Filter by Blue Aqua Max Flow Rate: 420 GPH (1600L/H), H-Max (Lift height): 8.2 feet Aerating water to increase O2 level Suction cup mounting feet for either vertical or horizontal mounting Great for under gravel filter or top filter, Contains no seals or messy oils The small profile size makes the pump easy to hide or disguise. This submersible water pump is great for aquarium, fountains, spout and hydroponic systems.