- 4-inch black escape hood designed for ventilation systems and dryers - Integrated pest protection grille prevents the entry of insects and dirt - Flange included for easy and secure installation on air ducts - High-quality plastic with UV stabilizer, resistant to sun fading - Protects against wind, rain, and snow, keeping the interior dry and safe - Versatile use for indoor and outdoor applications, compatible with residential and commercial HVAC systems - Improves airflow and energy efficiency of the ventilation system - Precise dimensions: flange opening 9.9 cm, insertion height 3 cm, exterior 15.3 x 14.8 cm - Easy to paint to blend into any décor or environment