Window ventilators ideal for both uPVC and timber Supplied as a complete set with end caps and screws Durable, easy to fit and fully tested Made from U.V stabilised PVC Available in 300/400mm models White or Brown Finish Snap-on quick-fit end caps & Screws supplied Positive open and close action Integral fly screen in external hood Can be fitted to give up-draught or down-draught Tested in accordance with BS EN 1026:2000 & BS EN 1027:2000 weather performance Independently acoustically tested in accordance with BS EN 20140-10:1992, ISO140-10:1991.