Convertible automatic universal, roll paper towel dispenser and 18-gal. waste receptacle module can be interchanged with a universal, touchfree module or a folded towel module and 12-gal. waste receptacle, respectively. Cabinet is not replaced when changing modules. Satin-finish stainless steel. Seamless beveled flange. Removable waste receptacle is locked into cabinet. Rough wall opening 16" W, 54 3/4" H, 4" min. depth. Battery requirements: 4 Alkaline "D" Cells (not included).