Query: small metal air vents
FTVOGUE Outdoor Dryer Vent Cover, Stainless Steel Grille Square Dryer Vent Exterior Wall Vent Moving Flaps
20" X 30" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door - HVAC Vent Duct Cover - White [Outer Dimensions: 21.75w X 31.75h]
12"w X 12"h Aluminum Exterior Vent for Walls & Crawlspace - Rain & Waterproof Air Vent with Screen Mesh - HVAC Grille - White [Outer Dimensions 13.5”w x 13.5”h]
SMI Ventilation Products VBB630 Cold Air Return - 6 in x 30 in Victorian Style Base Board - Overall Dimensions 8 in x 32 in
Decor Grates AJH410-NKL Floor Register, 4" x 10", Nickel
12" X 12" Steel Return Air Filter Grille for 1" Filter - Easy Plastic Tabs for Removable Face/Door - HVAC Duct Cover - Flat Stamped Face -White [Outer Dimensions: 13.75w X 13.75h]
10"w X 10"h Steel Return Air Grilles - Sidewall and Ceiling - HVAC Duct Cover - White [Outer Dimensions: 11.75"w X 11.75"h]