Cpolebev 2 Pcs 110mm Non Power Roof Ventilator Wind Turbines Attic Air Vent for Houses Factory Attic Farm Leak Proof Vent Cap Fan

our non power roof ventilator does not require any electricity to operate; Instead, it automatically exhausts air throughout the day; Avoid extra expenses and the worry of short circuits with this energy conservation solution that offers continuous and noiseless operation our package includes 2 non power roof ventilators, each with a hoop; The vent connection size details to about 4.33 inches/ 11 cm in diameter and 7.48 inches/19 cm in height; It ensures quick and proficient release of roof air in just a matter of minutes while securing your space against rain and moisture the ventilator comes with a tube diameter of about 4.33 inches/ 11cm and a turbine diameter of about 7.48 inches/ 19cm; Its perfect size assures quick and efficient air release while keeping your space free of moisture and stale air the non power roof ventilator is exclusively constructed with the quality 201 stainless steel, assuring you of its and sturdiness; The material does not only resist rust but endures high temperatures as well, perfect for challenging weather conditions this ventilator is your reliable companion for residential use or light commercial applications; It's perfect for spaces like factories, farms, production workshops, kitchens, roofs, and houses; The easy air flow makes it a suitable choice for chimneys not frequently applied, ensuring a comfortable environment, Weight: 2.81971233098 pounds, Manufacturer: Cpolebev