About This

304 Stainless Steel Construction：Made from 304 stainless steel for enhanced durability and long-lasting performance in various weather conditions. Measure the width and height of your existing duct opening before ordering. The listed dimensions (W x H) reflect the required opening size for proper fitting
Manual Adjustable Blades：Equipped with manually controlled blades that can be opened to improve airflow or closed to help block rain, snow, and unwanted debris, giving you flexible ventilation control
Weather-Resistant Design：Effectively helps prevent rain and snow from entering while allowing fresh air to circulate. The low-profile, recessed frame sits flush with walls, ceilings, or floors, providing a clean appearance and helping conceal ducts, pipes, or cables in various indoor areas
Multiple Size Options:Available in a range of standard sizes from 300 × 300 mm (12" × 12") to 600 × 600 mm (24" × 24") to accommodate different openings. Select the size that best matches your installation requirements
Simple Wall-Mount Installation:Designed for straightforward wall-mounted installation using basic tools. Offers improved ventilation control and added protection from outdoor elements through a user-friendly, manual operation setup