Laguna PowerFlo Underwater Filters protect the pump from clogging, keeping pond water clean and clear. These filters feature Laguna's unique 'building block' design that expands their filter capacity with an add-on chamber. Connect any pump with Laguna's unique click-fit couplings. They can be positioned near the pond's edge for quick access and easy maintenance.

Both filters clean your pond water through strong Mechanical Filtration - filtering out dirt and floating debris.

The PowerFlo Max Internal Filter also provides superb Biological Filtration by incorporating patented BioMax filter material. These inert ceramic rings provide a massive internal and external surface area for thriving populations of beneficial bacteria. These bacteria complete with algae for food and break-down harmful toxins.