40"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 9.25"H] w24h24 providing a reliable connection for

providing a reliable connection for 5" round ducts

With its compact size and high-quality materials

offering maximum flexibility

Actual Filter Size – 19 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 20 5/8" width X 10 5/8" height

40"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 9.25"H] w24h24 providing a reliable connection for+ Product Details Size 40"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 41. 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