8"w X 8"h Extruded Aluminum Adjustable Surface 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"] 18" Round Duct Pipe this easy-to-install grille fits seamlessly

this easy-to-install grille fits seamlessly into any standard return filter opening

Rigid Design - Noise Free Components - No Vibrating Louvers Etc

with actual outer dimensions of 8

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height -

+ Product Details Size - 6"w X 14"h is the size for the duct opening measurement only

8"w X 8"h Extruded Aluminum Adjustable Surface 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"] 18" Round Duct Pipe this easy-to-install grille fits seamlessly+ Product Details Size 8"w X 8"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 9. 125" X 9. 125". Design Re configurable Interchangeable Sections Easily convertible into 1 Way, 2 Way, 3 Way, or 4 Way Just lift sections and rotate to re configure direction. High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds a