6"w X 6"h Extruded Aluminum Adjustable Core Supply Ceiling HVAC Air Grille – Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 7.125" X 7.125"] 10in diameter 75" Width X 19

75" Width X 19

+ Product Details Size – 6" x 28" or 28" x 6" is the size for the duct opening measurement only

Our coils have a a very high PSI burst pressure

+ Product Details Size - 30"w X 2"h is the size for the duct opening measurement only

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

6"w X 6"h Extruded Aluminum Adjustable Core Supply Ceiling HVAC Air Grille – Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 7.125" X 7.125"] 10in diameter 75" Width X 19+ Product Details Size 6"w X 6"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 7. 125" X 7. 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