• Fits 18" Baseboard Space | Wooden Corner Baseboard Register by Handua | Return Air Grille | 18" External Length Decorative Air Supply Vent Cover | Pre-Finished Natural Red Oak [Face] Wood Air Diffuser KWD 13.500
• Handua 18x24x1 Air Filter MERV 8 Dust Control, Plated Furnace AC Air Replacement Filter, 4 Pack (Actual Size: 17.75" x 23.75" x 0.75") KWD 14