40"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 7.25"H] Insulated Flexible Ducts R-6.0 + Product Details Size –

+ Product Details Size – 16"w X 25"h pleated MERV 2 filter for HVAC return filter grille - 12 Pack

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+ Product Description When it's time to upgrade your HVAC Vents in your house

+ Product Details Size - 18"w X 12"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height -

40"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 7.25"H] Insulated Flexible Ducts R-6.0 + Product Details Size –+ Product Details Size 40"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 41. 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