Stainless Steel Roof Wind Turbine Cap Vent 8 Inch - Easy to Install Exhaust Cap Roof Flue Vent - Round Rotating Roof Vents with Unpowered Rotation

Name: Roof VentilatorEfficient Operation: This roof ventilator utilizes natural wind and air-heat convection resulting from the temperature variation between indoors and outdoors to drive the turbine, generating centrifugal force and negative pressure to remove stale air from the room.Material: Made of high-quality 304 stainless steelSizes Available: Diameter options include 100mm/4in, 150mm/6in, 200mm/8in, 300mm/12in, 350mm/13.8in, 400mm/15.8in, 450mm/17.8in, 500mm/19.6in, and 600mm/23.6in. The mounting nozzle is slightly smaller than the vent pipe for convenient installation, so refer to the dimensional drawings to select the appropriate size for your needs.Note: This product is manually measured and may have a 2-3cm error. Additionally, due to variations in light and screen settings, the item's color may differ slightly from the picture.

• Material: Made of high-quality 304 thick stainless steel, galvanized support frame, high-quality ball bearings
• Features: zero consumption, zero noise, rainproof, rustproof, high hardness, corrosion resistance and long service life.
• Working principle: Using natural wind and air thermal convection caused by the difference between indoor and outdoor temperature, the turbine is driven to rotate, and the stale indoor air is discharged.
• Installation: The hood is equipped with two types of installation accessories, a clamp and a 90° fixed foot. Small sizes can be installed with clamps to prevent gaps, and large sizes can be fixed with 90° fixed feet.
• Application: Suitable for ventilation ducts, chimneys, farms, factory roofs, warehouses, etc.