8" X 8" Universal Aluminum Access Panel Door For Wall / Ceiling Application (Push-Lock) With Solid Frame - [Outer Dimensions: 9" Width X 9" Height] Compatible With Duct 6in + Product Details Size –

+ Product Details Size – 36"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 38 5/8" height -

actual front end outer dimensions are approximately 27 5/8" width X 32 5/8" height

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 8" OR 8" x 24" duct opening (measured at the opening)

8" X 8" Universal Aluminum Access Panel Door For Wall / Ceiling Application (Push-Lock) With Solid Frame - [Outer Dimensions: 9" Width X 9" Height] Compatible With Duct 6in + Product Details Size –+ Product Details Size 8" X 8" is the size for the drywall opening measurement only, actual front end outer dimensions are 9" width X 9" 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 etc.