Fits standard 200mm ducting – Compatible with 200mm rigid duct pipe or 203mm flexible hose for easy integration into existing systems. Prevents cold draughts and backflow – Built-in gravity flap closes automatically when the fan is off, helping block cold air, odours, and insects from re-entering the duct. Smooth airflow when operating – Flap opens freely when the fan runs, allowing steam, moisture, and stale air to exit efficiently from the room. Quick push-fit installation – Lightweight, durable plastic body slots neatly into round ducting with no specialist tools required. Versatile ventilation use – Suitable for extractor fans, cooker hoods, tumble dryers, in-line fans, and general domestic ventilation systems.
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