Removes up to 85% of debris before it settles to the bottom. Macro filtration traps large debris for easy removal. Optional UV clarifier eliminates green water. Biological and mechanical filtration polishes the water.Sturdy non-skid coverBio-filter frame with filter mat.Super-strong injection molded structural polymer housing resists warping and handles large pumps.Optional mid-water intake.Rugged injection-molded leaf basket.External pump outlet.Integrated water stop flange.One-click locking weir allows for complete isolation for cleaning and