12"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 12.25"W x 7.25"H] tool bags + Product Details Size -

+ Product Details Size - 20"w X 12"h X 2"d (for duct opening measurement only)

the actual front end outer dimensions are 8" in diameter

1 piece of seal

The first number in a access panel size represents the width

+ Product Details Size – 22"w X 12"h pleated MERV 8 filter for HVAC return filter grille - 3 Pack

12"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 12.25"W x 7.25"H] tool bags + Product Details Size -+ Product Details Size 12"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 13. 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