White Plastic Hit & Miss Adjustable Air Vent Open & Shut Ventilator Cover Grille

9" x 3" - For openings upto 229mm x 76mm (FREE AIRSPACE 2240mm). 9" x 6" - For openings upto 229mm x 152mm (FREE AIRSPACE 4680mm). 9" x 9" - For openings upto 229mm x 229mm (FREE AIRSPACE 6350mm). Includes 4 Hidden Fixing Points, In Each Corner On Rear Of Vent.

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