4"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 5.25"W x 5.25"H] White + Product Details Size –

+ Product Details Size – Duct end cap is 22" X 18" | 26-gauge galvanized steel end cap

making it perfect for your range hood or ventilation fan

blending seamlessly with your wall

and squirrels

4"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 5.25"W x 5.25"H] White + Product Details Size –+ Product Details Size 4"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 5. 25" Width X 5. 25" Height. Design Designed for concealed, flush placement on your wall with a 3 8 inch space between louvers, this linear grille comes with an installation frame and clips for easy hook in assembly, ensuring a refined and seamless look. High Quality Aluminum The premium durable aluminum will never rust and it will never