Internally Braced, Wind Turbines Whirlybird Turbines, Cap Vent Round, Can Be Used for Office Space, Public Environment Ventilation and Air Exchange, Smooth Surface

Rotating fume hood for ventilation pipes, chimneys and exhaust pipes.It is made of stainless steel, which can be easily and quickly installed in the extract duct.It prevents strong wind from entering the inside of ducts, chimneys, stoves, etc. and avoids harmful effects of smoke in the house.Specification.Product name: Fireplace coverMaterial: stainless steel galvanized● External dimensions.11 cm (4 inches), including 1 snap ring15 cm (6 inches), including 1 snap ring20 cm (8 inches), including 1 snap ring25 cm (10 in.), includes 1 snap ring30 cm (12 in.) including 3 fixed legs40 cm (16 inches), including 3 fixed feet45 cm (18 inches), including 3 fixed feet※NotePlease understand that the size of the manual measurement may have errors, please refer to the actual product received.If you have any questions, please feel free to contact us, we will reply to you within 24 hours.

• One person can also complete the installation, according to the size of the choice of clips or fixed feet for installation, solid and not easy to shake
• Used for chimney pipe, vent, fireplace mouth installation, can be used for breeding park, industrial base, residential building, office space, public environment ventilation and air exchange
• The rotating vent cap is made of 304 stainless steel, which has a longer service life than ordinary steel chimney caps, and the internal metal moving parts increase the service life of the cap and make it easy to operate
• Smooth surface, curved blades are arranged neatly and orderly to prevent backflow of wind and rain from entering the pipe when the chimney cap is working
• Flexible and smooth rotation, can rotate under the action of natural wind and indoor/outdoor temperature difference, the harder the wind blows, the faster the blades rotate