28"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 29.25"W x 7.25"H] Insulated Flexible Ducts R-6.0 14"w X 3"h Is The

14"w X 3"h Is The Size For The Duct Opening Measurement Only

High Quality – High quality powder coated steel

+ Product Details Size - 8"w X 16"h X 2"d (for duct opening measurement only)

+ Product Details Size & Compatibility – The 8" galvanized sheet metal straight transitioning duct boot is compatible with duct 8"

The 45-degree louvers reduce system stress while optimizing performance

28"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 29.25"W x 7.25"H] Insulated Flexible Ducts R-6.0 14"w X 3"h Is The+ Product Details Size 28"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 29. 25" Width X 7. 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