14x25 Nominal Upflow/Horizontal Furnace Filter Base; Holds 1" & 2" standard size filters.599354 $151.72 SKU: 599354 Back $151.72 Quantity -+ Add to Cart Details 14x25 Nominal Upflow/Horizontal Furnace Filter Base; Holds 1" & 2" standard size filters. DetailsBackDetails14x25 Nominal Upflow/Horizontal Furnace Filter Base; Holds 1" & 2" standard size filters.See MoreSee Less