Aquascape Pond Filter Urn, Decorative Filtration for Water Garden, 400 GPH | 77006 Decorative urn provides efficient mechanical and biological filtration for smaller ponds and water gardens up to 500 gallons Adds the sight and sound of trickling water to ponds without waterfalls or streams 1/2-inch water hose connection ideal for use with pumps up to 400 gallons per hour (GPH) Compatible with Aquascape Ultra or Aqua Jet Water pumps Comes complete with mechanical and biological filter media; measures 20 x 11 x 11 inches (Length x Width x Height); 1-year limited warranty