6" X 6" Aluminum Access Panel Gypsum Board/Sheet Rock Door For Wall / Ceiling Application (PUSH-LOCK DOOR) With Frame - [Outer Dimensions: 7" Width X 7" Height] Grille + Product Details Size -

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

+ Product Details Size - 30"w X 18"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 24 5/8" width X 27 5/8" height

and keep the cold air out during the Winter Months

+ Product Description Secure your thermostat with the heavy-duty Beige Metal Thermostat Guard

6" X 6" Aluminum Access Panel Gypsum Board/Sheet Rock Door For Wall / Ceiling Application (PUSH-LOCK DOOR) With Frame - [Outer Dimensions: 7" Width X 7" Height] Grille + Product Details Size -+ Product Details Size 6" X 6" is the size for the drywall opening measurement only, actual front end outer dimensions are 7" width X 7" 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 spaces.