20"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 21.25"W x 7.25"H] w24h24 actual front end outer dimensions

actual front end outer dimensions are approximately 26 5/8" width X 38 5/8" height

also referred to as T-Bar or Lay-in system

+ Product Details Size - 18"w X 22"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 32"h X 2"d (for duct opening measurement only)

+ Product Details Size - 30"w X 40"h is the size for the duct opening measurement only

20"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 21.25"W x 7.25"H] w24h24 actual front end outer dimensions+ Product Details Size 20"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 21. 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