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- Window/ Door Trickle Vent, Grey 400mm.
- Perfect for preventing condensation build-ups that could lead to mould growth which can be harmful to your health.
- Trickle vents prevent airflow when closed, and when open they allow a small amount of air to circulate around the room.
- Size 400mm.
- Includes vent, screws and screw covers.
- Contents: 1 Grey vent.