10"W X 4"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 11.75"W X 5.75"H] To enable screen reader support + Product Details Size &

+ Product Details Size & Compatibilty - The 12" to 6" round metal pipe reducer & increaser 30 gauge is compatible with duct 12" to 6"

Its locking eight-tumbler mechanism and supplied key safeguard your thermostat from tampering

+ Product Details Size – 18" Wooden Corner Baseboard Grille

actual front end outer dimensions are approximately 24 5/8" width X 16 5/8" height

10"W X 4"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 11.75"W X 5.75"H] To enable screen reader support + Product Details Size &+ Product Details Size 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" width X 5. 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.