Skimming Action - Pulls debris from the surface of the water, capturing it in a rigid leaf basket with a handle for clean, no mess disposal. Biological Filtration - Filter media provides a surface for beneficial bacteria to colonize the skimmerfilter, converting biological waste from fish, ammonia and other toxins to inert forms for healthier ponds. Mechanical Filtration - The skimmerfilter protects and extends the life of your pump, providing a place to conceal ugly equipment and plumbing. When used with a biological filtration system, the skimmer prefilters debris allowing your filter to work more efficiently. The skimmerfilter’s super strong injection molded housing and cylindrical design resists warping and compaction in the ground, winning the approval of landscape and irrigation professionals everywhere. It's large enough to accommodate a large submersible pump or two medium size pumps. The Savio Skimmerfilter® works as a Complete Filtration Solution for ponds up to 1,000 gallons (or use with a Savio Livingponds Filter for larger water features and still enjoy the same clean, clear water). Three faceplate assemblies are available to accommodate a variety of pump sizes.. Product Features Skimmer action removes up to 85 % of debris before it settles to the bottom of the pond Macro filtration traps large debris for easy removal Optional UV clarifier eliminates green water (up to two UV clarifiers may be added to each Skimmerfilter™) Biological and mechanical filtration polishes water Integrated water-stop flange Rugged injection-molded leaf basket One-click locking weir allows complete isolation for cleaning and winterization Sturdy non-skid black cover handles foot traffic Super-strong injection-molding provides strength that resist warping 5-year warranty on filter housing and lid 1-year warranty on all internal components 8.5" Faceplate suitable for flow rates up to 3900 gallons per hour