coospider-repta Submersible Pond Filter with UV Clarifier

Keep your pond crystal clear with this submersible filter and 18W UV clarifier, eliminating green water algae in 3-7 days. It features advanced 6-layer filtration, including mechanical pads, activated carbon, lava rock, and bio balls, supporting beneficial bacteria for superior biological filtration. The powerful 42W pump delivers 660 GPH for ponds up to 1500 gallons. Customize your water feature with 3 interchangeable fountain nozzles (lotus, bell, jet) for beautiful visual effects and aeration. Designed for easy setup and maintenance, it's perfect for koi ponds, water gardens, and backyard ponds.