COMBUSTIBLE FLOOR BASE, USED WITH:NDGM100EF, NCC5125BKB, & NCC5150BKB FURNACES, FOR USE WITH:DOWNFLOW FURNACE AND COIL ONLY, MATERIAL:GALVANIZED STEEL, WEIGHT:7 LBS, INNER DIMS:16" X 20-5/8"W, OVERALL DIMS:28-3/4"H X 23"W X 3"D, ADDITIONAL #:45-180-62, *SOME INSULATION HAS DAMAGE*