12" X 12" Aluminum Access Panel Gypsum Board/Sheet Rock Door For Wall / Ceiling Application (PUSH-LOCK DOOR) With Frame - [Outer Dimensions: 13" Width X 13" Height] Aluminum + Product Details Size –

+ Product Details Size – 24" x 36" or 36" x 24" is the size for the duct opening measurement only

12"w X 8"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size - 26"w X 14"h X 2"d (for duct opening measurement only)

75"H – fits a 20" X 6" duct opening

Design – Easy unrestricted airflow for your HVAC system - 50° angled to provide maximum airflow

12" X 12" Aluminum Access Panel Gypsum Board/Sheet Rock Door For Wall / Ceiling Application (PUSH-LOCK DOOR) With Frame - [Outer Dimensions: 13" Width X 13" Height] Aluminum + 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 Strong and sturdy aluminum built to last and never rusts. Made with gypsum sheetrock for a seamless finish Design Aluminum frame material with sleek, shiny, durable white powder coat finish for an attractive look & moisture resistant to prevent mold & mildew buildup in indoor or outdoor