Rotating Chimney Cowl Cap, Roof Vents Cowl, Bird Guard Spinner Anti Downdraught Top All Purpose Chimney Cowl Stainless Steel for Most Standard Chimney Pots

Stainless steel rotor, chimney rotating cover, rotating cover ventilation, no power energy saving, turbines ventilation Material: 304 stainless steel Advantages: discharge indoor hot air and air, purify the indoor environment Principles: Utilize natural wind and indoor temperature difference, air -to -flow drives turbines rotation. Application: For the ventilation of exterior walls such as bathrooms, kitchens, warehouses, residences, apartments, etc. Size - The package includes: 110mm (4.3 inches) ventilation cap×1, clamp×1 160mm (6.3 inches) ventilation cap×1, clamp×1 200mm (7.9 inches) ventilation cap×1, clamp×1 250mm (9.8 inches) ventilation cap×1, clamp×1 300mm (11.8 inches) ventilation cap×1, fixed foot×3 400mm (15.7 inches) ventilation cap×1, fixed foot×4 Package: Vent hood x 1 + Accessories

• Made of thickened stainless steel material, will not rust, durable, long service life. Easy to clean
• The roof wind smoke exhauster, galvanized support frame and high-quality ball bearings, zero energy consumption, flexible rotation, firmness and strong pressure resistance
• Use the natural wind and air thermal convection caused by the temperature difference between indoor and outdoor to drive the turbines to rotate and exhaust the indoor air
• The fan can be installed on a slope of 0-22.5 degrees, flat or inclined. High exhaust efficiency
• Applicable to chimneys, farms, factory roofs, ventilation ducts, houses, warehouses, etc. easy to install