MMDXDLX Chimney Spinner Cowl Thickened 304 Stainless Steel, Wind Driven, Large Diameter, Indoor Ventilation(400)

Principle: The cap uses the natural wind and air heat convection caused by the temperature difference between indoor and outdoor to drive the turbines to rotate and expel the stale indoor air Functional: Designed to release your roof air in just a few minutes, unaffected by rain and moisture, suitable for chimneys that are not used frequently Roof Ventilator：It is very effective in preventings air current and increasing ventilation. The rings of thickened stainless steel chimneys is specially designed, and ones by ones is placed ones by ones. The wind will not flow down the chimneys Sturdy and Durable: Premium roof ventilator is sturdy, durable and ideals for residential or light commercial use Applicable Sites: Rotate the cover of the Chimney cover cover for ventilation pipes, chimneys and air extraction. Suitable for factories, farms, production workshops, kitchens, roofs, home, farms