The LinkVentwillprovideTrickleVentilationinaccordancewiththeBuildingRegulations 2000:Part F:Approved Document F1October 2010 and Scottish Building Regulations October 2011 Standard 3.14. The product is specifically designed for “Through Profile ”PVC-U applications using a 13 mm routed slot and is available in two sizes. All ventilators have the option to be “Screw” or “Clip” fixed with the advantage of rapid fitting to profiles.