General description The 2 Pcs 110mm Non Power Roof Ventilator Wind Turbines are designed for efficient attic air ventilation in houses, factories, and farms. Constructed from high-quality 201 stainless steel, these ventilators are rustproof and heat resistant, ensuring durability in challenging weather conditions. They operate without electricity, providing a continuous and noiseless air exhaust, making them an energy-efficient solution for maintaining a comfortable environment. Technical specifications Tube diameter: 4.33 inches / 11 cm Turbine diameter: 7.48 inches / 19 cm Height: 7.48 inches / 19 cm Material: Stainless steel Color: Silver Usage The non power roof ventilator is ideal for various applications, including: Residential use Light commercial applications Factories Farms Production workshops Kitchens Roofs Other information Package Contents: 2 roof vents Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the