The Backyark Outdoor Fish Pond Filter Medium 800 900 Water Pump by OASE is a high-quality fountain and water feature pump designed specifically for ponds. This model, called the pond ECO 825, is adjustable for flow rate and is safe for fish. It is submersible, weatherproof, and easy to install. The filter included in this pump helps to keep the water clean and clear while providing a convenient solution for maintaining your outdoor water feature. Its sleek black design and compact dimensions make it suitable for various pond sizes and locations.