18x10 Inch (Duct Opening) Air Return Vent Cover Decorative Premium Aluminum AC for Ceiling & Wall, Rustproof Grille, Ideal Home HVAC Durable Easy to Install by ACLAMINAIRE

MEASURE DUCT OPENING FIRST: For a 18" x 18" duct hole, ensure a precise fit by measuring your ceiling or sidewall opening. The visible face measures 19.6" x 19.6", providing a seamless, decorative air return vent cover for consistent airflow. NO MOVABLE PARTS: Featuring fixed blades at a 38° angle, this vent cover ensures stable, consistent airflow without adjustable fins, louvers, or filters, making it ideal for air grills and HVAC return air applications. INDOOR USE ONLY: Designed exclusively for ceiling or wall installations, this air return grill is not suitable for floor or exterior applications, ensuring efficient performance in crawlspaces, interior doors, and home air vent systems. DURABLE ALUMINUM CONSTRUCTION: Crafted from high-quality extruded AA6063 aluminum, this vent cover offers strength, weather resistance, and long-lasting durability, ideal for HVAC systems and cold air diffusers in homes. STYLISH SEMI-MATTE FINISH: Coated with a scratch-resistant electrostatic white coating, this decorative ceiling vent cover complements various home styles while providing an easy-to-clean, contemporary air vent cover solution.