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Internal Filters

Laguna Submersible pond filters are simple to install and generally provide a combination of mechanical and biological filtration to keep ponds clean and the fish healthy. The units are placed directly into your pond and are useful for smaller ponds.

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Laguna PowerFlo underwater filters do an excellent job of keeping ponds clean - up to 800 US Gallons

What is a Submersible Pond Filter?

Water is drawn through submersible pond filters by a submersible pump, which can be attached to the filter either internally or externally and then discharged into the pond. Because they tend to pick up all the debris from the pond bottom, submersible pond filters protect the pump from clogging and keep the water clean and clear.

Installing a Submersible Pond Filter

Laguna internal filters are easy to install and can be well hidden with planting baskets. All filters should be powered by a solids handling pump that can turn your total pond volume at least once every two hours.

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  1. Laguna Top Filter

    Laguna Top Filter

    Out of stock

    Laguna mechanical and biological top filter is suitable for PT795 and PT796 Learn More
  2. Laguna PowerFlo Max Biological Underwater Filter

    Laguna PowerFlo Max Biological Underwater Filter

    Out of stock

    PowerFlo Max performs the same mechanical filtration as Laguna's PowerFlo Mechanical Underwater Filter, plus it performs added biological filtration thanks to a third chamber which houses Laguna'a patented BioMax filter media. BioMax's ceramic rings deliver exceptional biological filtering action, thanks to its large surface area that allows millions of beneficial bacteria to grow. The friendly bacteria help break down harmful toxins. The end result is that the filter protects the pump from clogging and keeps water clean and clear. The filter can be installed near the edge of the pond for quick and easy access and maintenance. The filter comes with Laguna's unique Universal Click-Fit coupling, which allows connections to 3/4, 1 or 1 1/4 inch (19, 25 or 32 mm) hosing. Two foam filter pads and BioMax filter media are also included Laguna PowerFlo Max Biological Underwater Filter, for ponds up to 3028 L (800 U.S. gallons) Laguna PowerFlo Max Biological Underwater Filter provides complete and efficient mechanical and biological filtration for ponds up to 3028 L / 800 U. Learn More
  3. Laguna SkimAway Skimmer Filter Fountain

    Laguna SkimAway Skimmer Filter Fountain

    $204.99

    Laguna SkimAway Skimmer Filter Fountain, for ponds up to 1890 L (500 U.S. gallons) Laguna SkimAway is a new and unique multi-functional skimmer/filter/fountain for water gardens combining functionality and visual elegance. Learn More

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