12" X 12" Universal Aluminum Access Panel Door For Wall / Ceiling Application (Push-Lock) With Solid Frame - [Outer Dimensions: 13" Width X 13" Height] 10" Round Duct Pipe + Product Details Size -

+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 7

+ Product Details Size – 14"w X 22"h is the size for the duct opening measurement only

Strong aluminum frame & cube core that never rusts

8" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

12" X 12" Universal Aluminum Access Panel Door For Wall / Ceiling Application (Push-Lock) With Solid Frame - [Outer Dimensions: 13" Width X 13" Height] 10" Round Duct Pipe + Product Details Size -+ 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 aluminum solid frame construction. Design Aluminum frame with no welded edges. Fully removable door with a spring loaded hinge. Open close easily with push lock technology, just push open and push close. Easy Access Provides easy access for HVAC, plumbing, electrical, crawlspace