Through the wall ventilation kits are pre-packaged to reduce installation time from cutting ducts on site. Ideal for existing bathroom and kitchen fan installations and supplied complete with an adjustable cavity wall sleeve to suit most wall depths. Verplas provide a variety of external grilles to suit all applications from louvre with insect mesh protection to high rise wall kits providing wind protection which can be installed inside the property without the need for scaffolding and ladders.  Available in a range of colours to suit your individual needs.