WELLAND Hardwood Vent Baseboard Diffuser Wall Register Unfinished, 18 inch, White Oak Baseboard diffuser Wood vents Unfinished vents White oak vents The only WELLAND authorized seller Approximate size : 18 x 3.5 x 4.5 inches White Oak Hardwood Vents Baseboard Diffuser Wall Register Directs air flow, compatible with cooling and heating