Achtek 4"x10" Duct (5-1/2"x11-3/4" Overall Size) Solid Cast Aluminum HVAC Air Supply Grill for Wall-Black with Screw Holes with Detachable Steel Louver | Powder Coated

["SIZE: Fits standard duct opening of 4\"x 10\" ( Overall Face Plate Size: 5-1/2\"x 11-3/4\")","METAL: Solid Sand Cast Aluminum with heavy gauge face plate thickness approx. 3/16” (4.76 mm) built for durability with adjustable Steel louver/damper to control air flow","MATTE POWDER COATED: Fine grain powder coated finish is heat cured for durability with ease to clean and maintain. White vent cover may be re-painted","INSTALLATION: Gravity drop for Floor. For Wall /Ceiling (counter sunk screw holes with matching screws provided)","NO PLASTIC PARTS /RECYCLABLE /SUSTAINABLE MATERIAL and PATENT DESIGN: Handcrafted using cost effective recyclable and sustainable aluminum metal. Industrial Design Patent 196854"]