This ventilator has less blades but the special designing of blades helps in providing outstanding performance. Also, the design of the ventilator prevent water from coming inside. Additionally its full SS and PP based structure makes

Features:

These are made from Polypropylene and Stainless Steel.

Stainless Steel being harder material as compared to Aluminum, makes ventilators strong, sturdy and durable o Ventilators are lighter in weight as compared to any other ventilator, though SS has higher density than Aluminum.

This bi-fold design of DUROVENT Ventilator vanes prevents water to enter inside the shed. 

There are only 24 vanes compared to traditional Aluminum Ventilator having 36 to 48 vanes. 

Rivet and other components of ventilators are of Stainless Steel / PP which are life time rust free.