8"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 9.25"W x 5.25"H] Adjustable Return Actual Filter Size – 25

Actual Filter Size – 25 3/4"w x 11 3/4" x 1"

When used together

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actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

Rigid Gauge Steel

8"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 9.25"W x 5.25"H] Adjustable Return Actual Filter Size – 25+ Product Details Size 8"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 9. 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