Please choose the finish & Size you require from the drop down menu above. Made in our UK Factory. Bespoke sizes can be made to special order, Please message for details.These vents can be fitted to new houses to help air flow & reduce damp. Fixing screws are not supplied as there are too many different materials to fix to. Other sizes can be supplied, please message for details. All orders placed on a Friday, Saturday or Sunday will be processed the following Monday. IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE & BT.