20x20 Fan/Coil Filter Base; Holds 1", 2" & 4" standard size filters.EZ-2020-FCS $165.08 SKU: EZ-2020-FCS Back $165.08 Quantity -+ Add to Cart Details 20x20 Fan/Coil Filter Base; Holds 1", 2" & 4" standard size filters. DetailsBackDetails20x20 Fan/Coil Filter Base; Holds 1", 2" & 4" standard size filters.See MoreSee Less