16"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 17.25"W x 9.25"H] 20 Feet Long + Product Details Size -

+ Product Details Size - 10"w X 10"h is the size for the duct opening measurement only

+ Product Details Size & Compatibility – The 5" galvanized sheet metal round to oval elbow boot is compatible with duct 5"

Actual Filter Size – 19 3/4"w x 9 3/4" x 1"

Aluminum Garage Door Air Vent Grille Register - With Damper Control Lever For Winter & Summer Settings - With Insect Net Prevent Guard [17

this grille offers durability and resistance to rust and corrosion

16"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 17.25"W x 9.25"H] 20 Feet Long + Product Details Size -+ Product Details Size 16"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 17. 25" Width X 9. 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