This Slimline Window and Door Trickle Vent (also known as a perma vent) is for use on double glazed uPVC, timber, and aluminium windows/doors. A robust smooth slim elegant modern rounded design with integral fly screen in the external hood. Easy fit trickle vent.Trickle vents will help avoid problems associated with poor ventilation in naturally ventilated spaces, including reduced risk of condensation, avoid over ventilation (minimizing energy consumption), improved comfort through draught avoidance.
All images are for reference purposes only and can show multiple dimensions of a single product so you can see the product from different angles. This does not usually mean the amount shown in the image is the amount you purchase. Where multiple items are shown please check the description as only one is usually supplied unless otherwise stated.