Crafted from premium stainless steel with a galvanized support frame and top-of-the-line , ensuring durability and . Harnessing the natural wind and air thermal convection resulting from indoor-outdoor temperature differences, this turbine effortlessly rotates to expel stale indoor air, promoting fresh airflow. Rainproof Design Enjoy whisper-quiet with our roof vent turbine, thanks to its noise-free mechanism. The encrypted blade clearance effectively prevents rain from infiltrating the ventilation system, ensuring optimal performance even in inclement weather. With the flexibility to be installed under slopes ranging from 0 to 22.5 degrees, setting up this ventilator is a breeze. Simplify your installation projects with ease and convenience. Perfect for a wide range of settings including chimneys, farms, factory roofs, commercial spaces, ventilation ducts, residential buildings, warehouses, and more. Enhance air circulation and maintain optimal indoor conditions effortlessly. Colour:Silver Material:Stainless steel Package Contents: 1set x stainless steel roof vent Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.