Dryzone 3x Telescopic Passive Wall Intake Vent Grille Kit with Filter (100 mm, White) | Adjustable Airflow | Condensation & Mould Control | No Wiring | Up to 500 mm Duct

Improve Indoor Air Quality | Supports and filters natural airflow to help resolve condensation and mould throughout the home. Set the Airflow You Want | Adjustable iris shutter lets residents open or close the vent to suit preference. Quiet, Always-On Background Ventilation | No moving parts or power. This vent works continuously with the natural flow of fresh air. Fast, Tidy Installation | Telescopic ducting fits walls up to 500 mm thick. No electrical connection required. Suitable for external walls near the ceiling. Beautiful understated white finish. Everything You Need | Includes internal grille with cleanable filter, telescopic duct, exterior hood, pull cord, screws and wall plugs, plus a five-year warranty.