12" X 12" Steel Access Panel Door For Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] 10in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 20 5/8" height

Do not measure the old vent cover

+ Product Details Size - 16"w X 34"h is the size for the duct opening measurement only

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

12" X 12" Steel Access Panel Door For Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] 10in diameter actual front end outer dimensions+ Product Details Size 12" X 12" is the size for the drywall opening measurement only, actual front end outer dimensions are 13" Width X 13" Height High Quality High grade steel construction. Flush Access Door Is a type of door or panel designed to provide access to concealed spaces, such as HVAC systems, electrical components, plumbing pipes, or other utility areas. Unlike traditional doors that have visible frames and hinges, a flush access door is