6 inch Chimney Cap, 304 Stainless Steel Rotating Chimney Cap, 4in 8in 10in 12in 16in 20in Spinner Anti Downdraught Top, Round Waterproof Ventilation Cover, for Wood Stove(160mm/6.3in)

This chimney cap utilizes the heat convection generated by natural wind and indoor temperature differences to drive a turbine rotation, efficiently expelling polluted indoor air through centrifugal force and negative pressure. Its robust design and reliable installation combine durability and aesthetics. The unique installation structure requires no tools, and its universal size allows for easy adaptation to various chimney duct ends, making it an ideal and convenient ventilation solutionMain Material: 304 Stainless SteelProduct Name: Rotary Ventilation Chimney CapShape: SphericalColor: SilverSpecifications: 110mm/4.3in, 160mm/6.3in, 200mm/7.9in, 250mm/9.8in, 300mm/11.8in, 400mm/15.7in, 450mm/17.7in, 500mm/19.7inIncludes: One chimney cap, one pair of gloves

• High-Quality Construction: Crafted from premium 304 stainless steel, this durable vent chimney cowl and fireplace chimney caps feature a galvanized frame and top-grade ball bearings for enhanced long-term durability
• Quiet and Rainproof Design: Engineered for extremely quiet operation, this unit also functions as effective spark flue rain covers. Its closed blade spacing acts as an anti downdraught vent cover, ensuring optimal performance in all weather
• Natural Ventilation: Harnessing wind and thermal convection, this efficient rotating chimney cowl cap and chimney spinner cowl rotates smoothly to expel stale air and promote fresh air circulation
• Easy Installation: Designed for quick and easy setup, this versatile vent cover outside and flue protector can be flexibly installed on roof slopes up to 22.5 degrees
• Versatile Applications: This spinner anti downdraught chimney cowl and roof bird-proof chimney covers is suitable for various locations from chimneys to commercial rooftops, enhancing airflow and maintaining optimal indoor environments