non-motorized 110mm roof fans, wind turbine type, for attics

Our kit includes two manual roof vents, each with a handle. The vent diameter is approximately 11 cm and the height is 19 cm. It ensures quick and efficient air removal from the roof in just a few minutes, while protecting your space from rain and humidity. This non-electric roof vent is made exclusively of high-quality 201 stainless steel, ensuring its robustness and durability. This material is not only rust-resistant but also withstands high temperatures, making it ideal for harsh weather conditions. Our non-electric roof vent requires no electricity to operate; it automatically removes air throughout the day. Avoid additional expenses and the risk of short circuits with this energy-efficient solution that provides continuous and efficient ventilation. The fan has a tube with a diameter of approximately 11 cm and a turbine with a diameter of approximately 19 cm. Its ideal size ensures rapid and efficient air extraction while protecting your space from moisture and stale air. This fan is a reliable ally for residential or light commercial applications; it is ideal for spaces such as factories, farms, production workshops, kitchens, rooftops, and homes; its optimal airflow makes it a smart choice for chimneys. Although it requires no electrical power to operate, this fan provides rapid ventilation in minutes. Reliable and efficient, it protects your environment from rain and excessive humidity. Enjoy quiet operation with our non-electric roof ventilator. Its smooth operation ensures rapid ventilation without excessive noise. Made of quality stainless steel, it is rust and heat resistant, and will provide you with many years of efficient service. Size: Tube Diameter: Approx. 4.33 inches/11 cm; Turbine Diameter: Approx. 7.48 inches/19 cm; Height: Approx. 7.48 inches/19 cm; Color: Silver; Material: Stainless Steel; Package Contents: 1 Set of Roof Ventilation Grilles for Houses. Only the above-mentioned package contents are included; other products are not included. Note: Light reflection and different displays may slightly change the color of the item in the picture. The measurement allowed error is +/- 1-3 cm.