Bathroom Door Air Vent Grille 440mm x 120mm / 18" x 5.3 inch Two Sided Ventilation Cover (White) - - Amazon.com
METOD Ventilation grill, stainless steel - IKEA
VENT FOLD | PRE-BENT GRID FOR VENTILATION | ROTHOBLAAS
Ventilation Grid, Satin Nickel - 367 mm x 79 mm - Richelieu Hardware
SMI Ventilation Products Essex Base Board 14 in. x 6 in. Opening, 8 in. x 16 in. Overall Size, Polymer Resin Decorative Return Air Grille, White EBB614 - The Home Depot