The Aquascape Large Pond Kit comes complete with everything you need to build a beautiful 21' x 26' ecosystem pond in any space. All necessary components are provided in a convenient, all-in-one kit that takes the guesswork out of purchasing individual components. The included skimmer and BioFalls¬Æ filter provide efficient mechanical and biological filtration, allowing you to spend more time enjoying your pond. The NEW SLD 5000-9000 Adjustable Flow, Solids-Handling Pond Pump provides flow rates up to 9,500 gallons per hour. A complete LED lighting package is included to help bring the pond and waterfall to life at night. The kit also includes the Automatic Dosing System for Ponds with a complementary water treatment. The Automatic Dosing System automatically adds water treatments to the pond when needed.