36"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 5.25"H] Flexible Ducts our access door offers high

our access door offers high durability with superior corrosion and rust protection

Copper coil line set fits most ductless mini split air conditioners

actual front end outer dimensions are approximately 22 5/8" width X 12 5/8" height -

+ Product Details Size - 6"w X 22"h X 2"d (for duct opening measurement only)

+ Product Details Size - 18"w X 6"h is the size for the duct opening measurement only

36"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 5.25"H] Flexible Ducts our access door offers high+ Product Details Size 36"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 37. 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