32"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 33.25"W x 5.25"H] Height_12in Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 33 3/4" x 1"

+ Product Details Size – 8" x 24" or 24" x 8" is the size for the duct opening measurement only

getting new filters is a breeze

+ Product Details Size - 20"w X 14"h X 2"d (for duct opening measurement only)

32"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 33.25"W x 5.25"H] Height_12in Actual Filter Size – 29+ Product Details Size 32"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 33. 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