Gravity Flaps Design
Manufactured from high-quality PP plastic, this model incorporates gravity flap louvers, which automatically open with airflow and close to prevent backdrafts when not in use.
Multiple Sizes & Colors
Available in black or white, sizes 4‑inch, 5‑inch, and 6‑inch, offering installation flexibility across projects.
Enhanced Protection
Comes with an anti‑insect net, ensuring dust and pests stay out of the ventilation system.
评价
目前还没有评价