Square ventilation grille - with non-return valve - for exhaust fan outlet - for 125 mm duct

General Description These square ventilation grilles with a backdraft damper are designed for exhaust fan outlets and fit 125 mm ducts. Made of high-quality plastic, they ensure a robust and durable construction. Technical Specifications Dimensions: for 125 mm duct Material: high-quality plastic Type: louvered wall-mounted ventilation grille Installation This external ventilation grille can be inserted into a ventilation duct or flexible duct and then fixed to the wall using the screws provided. Use It is ideal for passive ventilation, air conditioning, heating, ventilation, and heat recovery. The ventilation cover flap closes automatically when not in use, protecting your home from odors, noise, and backdrafts.