The Trion 259112102 is a supreme replacement filter media from the Bear series. The dimensions of this product are: 20" x 25" x 5". This model is designed to fit Skuttle, Generale and Ultravation and other models of cleaners. This media filter features unique electrostaticallycharged synthetic material which catches the smallest particles and pollutants. The Trion 259112102 is rated at a MERV 11 and it ensures efficient performance under the toughest operating conditions. This media filter comes with the galvanized wire mesh which resists corrosion and holds the pleat shape and supports the media. The filter bypass is eliminated thanks to the top and bottom, factory installed gasket. In addition, this Supreme replacement filter media is a UL900 listed product.