aluminum louver

The product specifies that the louvers are made from an aluminum alloy, as listed in the product details and specifications.

The product lists two size references: 19.69 in × 11.81 in in the specifications and a 20 × 12 inch size in the title. Check the product page or seller listing to confirm the exact measurement before ordering.

The listing shows conflicting information: a matte-finish description appears in one place while another line reads “Finish: No Surface Treatment.” Because both descriptors appear, verify the finish on the product page or with the seller before purchase.

The product specifies a 45° angled louver design. The listing notes this angle helps admit airflow while reducing direct water ingress and aiding general air movement.

The listing describes the louvers as suitable for exterior walls, side walls, doors, and cabinets, and cites common applications such as kitchens and bathrooms.

The listing describes two methods: using glass adhesive for a ‘regular’ door and using self-tapping screws for a wooden door. Because “regular” can be ambiguous, check the product instructions or the door material before choosing adhesive or screws.

The listing states the vent helps balance air pressure when doors are closed, which can reduce uneven room temperatures by promoting better airflow between spaces.