16" X 16" Steel Flush Access Panel Door for Wall/Ceiling Application with Slotted Lock, Mud-in Flange - [Outer Dimensions: 17" Width X 17" Height] w22h22 + Product Details Size –

+ Product Details Size – 20"w X 4"h is the size for the duct opening measurement only

creating a smooth

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

Constructed from durable

Actual Filter Size – 35 3/4"w x 33 3/4" x 1"

16" X 16" Steel Flush Access Panel Door for Wall/Ceiling Application with Slotted Lock, Mud-in Flange - [Outer Dimensions: 17" Width X 17" Height] w22h22 + Product Details Size –+ Product Details Size 16" X 16" is the size for the drywall opening measurement only, actual front end outer dimensions are 17" Width X 17" 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