8"w X 8"h Extruded Aluminum Adjustable Core Mount Supply Ceiling HVAC Air Grille – Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 9.125" X 9.125"] 12" Round Duct Pipe display === 'none' || dd Suitable for all AC 8in diameter 12125SDCLNGBX

display === 'none' || dd

+ Product Details Size – 16" x 24" or 24" x 16" is the size for the duct opening measurement only

It can be easily installed on drywall

+ Product Details Size - 10"w X 36"h is the size for the duct opening measurement only

8"w X 8"h Extruded Aluminum Adjustable Core Mount Supply Ceiling HVAC Air Grille – Interchangeable: 1 Way, 2 Way, 3 Way or 4 Way Vent Duct Cover [Outer Dimensions: 9.125" X 9.125"] 12" Round Duct Pipe display === 'none' dd Suitable for all AC 8in diameter 12125SDCLNGBX display === 'none' dd + Product Details Size – 16" x 24" or 24" x 16" is the size for the duct opening measurement only