20x25 Nominal Upflow/Horizontal Furnace Filter Base; Holds 1", 2" standard size filters.EZ-2025 $146.96 SKU: EZ-2025 Back $146.96 Quantity -+ Add to Cart Details 20x25 Nominal Upflow/Horizontal Furnace Filter Base; Holds 1", 2" standard size filters. DetailsBackDetails20x25 Nominal Upflow/Horizontal Furnace Filter Base; Holds 1", 2" standard size filters.See MoreSee Less