8" x 8" 2-WAY ALUMINUM BAR CEILING DIFFUSER - Vent Duct Cover - With Opposing Dampers via Lever Control RV Mobile Home + Product Details Size –

+ Product Details Size – 28"w X 30"h is the size for the duct opening measurement only

and extends HVAC system life

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+ Product Details Size - 8"w X 36"h is the size for the duct opening measurement only

8" x 8" 2-WAY ALUMINUM BAR CEILING DIFFUSER - Vent Duct Cover - With Opposing Dampers via Lever Control RV Mobile Home + Product Details Size –+ Product Details Size 8" X 8" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will never