Crafted from 201 stainless steel, the turbine roof vent blocks rain,, and debris to keep ventilation paths clean and dry year-round. Equipped with matching clamps, the shipping container vent allows secure installation once pipe dimensions align with its 7.87-inch specification. Ideal for workshops, farms, shipping containers, and attics, the turbine roof vent provides reliable, low-maintenance air circulation to refresh enclosed environments. Driven by natural airflow, the roof vent maintains steady high rotation to efficiently expel stale air and promote heat dissipation in enclosed spaces. The no-power ventilator operates silently with a dedicated bearing system, ensuring stable performance without extra energy costs or noise disruptions., Weight: 2.645547144 pounds, Manufacturer: Goutdori_F41_8136764