bimiti Door Air Vent Grille 500 x 300mm Two Sided 500 x\nProduct Details\n--AIR VENT GRILLE SIZE: The duct opening size of this vent grill is 500 x 300mm. Front end outer dimensions are 550mm X 350mm which is removable for ease of installation\n--ALUMINUM ALLOY STRUCTURE: The air vent cover is made of aluminum alloy with matte finish, which is anti-oxidation, no discoloration and never rust, easy to clean. The elegant, beautiful, and smooth surface also makes it suitable as door decoration\n--EASY DISASSEMBLY AND ASSEMBLY: Composed of a louver vent and a decorative frame, which can be installed and disassembled simply and conveniently\n--45\u00B0 OBLIQUE LOUVER DESIGN: The louvers of this ventilation grille are especially designed to allow passage of air into your home while stop water from entering, also for good look and better air flow. Even with closed doors, this convenient in-door vent balances air pressure and prevents uneven room temperatures\n--WIDE APPLICATIONS: This louvers