【Metal Top Hat Flue Rain Cap】Made of zinc alloy, this chimney pot roof cowl is resistant to cold and high temperatures, ensuring durability and preventing rust. 【Wide Application】Perfect for exhaust ventilation in roof chimneys and hood ducts, providing efficient and reliable airflow. 【Rainproof Design】Designed as a mushroom ventilator, this chimney cap effectively prevents rainwater from entering the flue, protecting your chimney system. 【Sturdy and Durable】Crafted from stainless steel, this rain cap is sturdy and long-lasting. 【Various Sizes Available】Choose from 100mm, 120mm, 150mm, or 200mm sizes to fit your specific chimney requirements.