22" X 22" Plastic Access Panel Removable/Reversible Door With Frame For Concealed Wall / Ceiling Application - [Outer Dimensions: 24" Width X 24" Height] w6h6 Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 6" duct openings

Install 2 Vents

75"H – fits a 20" X 18" duct opening

What does this mean

22" X 22" Plastic Access Panel Removable/Reversible Door With Frame For Concealed Wall / Ceiling Application - [Outer Dimensions: 24" Width X 24" Height] w6h6 Ideal for Walls & Ceilings:+ Product Details 22"w X 22"h is the size for the drywall opening measurement only, actual front end outer dimensions are approximately 2" wider. Most common access door Plastic Frame Easy Installation Just apply caulking or glue to the back of the frame Put in frame and lock the door into place Includes slots for a screwdriver or other prying devices Hinges on the top and bottom The door can be easily removed with a slight squeeze Installation