https://www.accessdoorsandpanels.com/24-x-12-standard-inverted-y-blade-bronze-door-louver-galvanneal-best/
Standard Inverted Y-Blade Bronze Louver Galvanneal 24" x 12"
This 24" x 12" louver blends strength and sophistication for efficient airflow. Its galvanneal steel build ensures long-lasting durability and performance.
standardinvertedbladebronzelouver
https://www.accessdoorsandpanels.com/model-number/hhd-gs/
Heavy Duty Galvanneal Steel Access Door for Large Openings
Secure large openings with the heavy-duty galvanneal steel access door, built for strength, corrosion resistance, and smooth operation in tough conditions.
heavy dutyaccess doorgalvannealsteellarge