20"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 21.25"W x 9.25"H] Height_22in Security: The access panel is

Security: The access panel is equipped with a slotted lock

If you're seeking to upgrade specific elements of your home

including round exhaust air duct systems for dryers

Applications – This sheet metal register duct ceiling outlet box is used for a 90-degree connection of round pipe to a square ceiling diffuser

+ Product Details Size – 25"w X 26"h is the size for the duct opening measurement only

20"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 21.25"W x 9.25"H] Height_22in Security: The access panel is+ Product Details Size 20"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 21. 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