8"W X 25"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 9.75"W X 26.75"H] Drop Ceilings / Steel Built-In Locking System – Comes

Built-In Locking System – Comes with a permanently attached eight-tumbler lock and a supplied key for added security

actual front end outer dimensions are approximately 36 5/8" width X 14 5/8" height

+ Product Details Size - 20"w X 28"h X 2"d (for duct opening measurement only)

making it compatible with most thermostat models

compatible with duct 10" | 5-Pack of 2' pipe – 10 foot length when connected – 26 gauge thick & made of thick & durable galvanized sheet metal

8"W X 25"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 9.75"W X 26.75"H] Drop Ceilings / Steel Built-In Locking System – Comes+ Product Details Size 8"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 25. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed.