TVS Aluminium Surface Fix Trickle Vent Canopy SKU: TVS Aluminium Surface Fix Trickle Vent Canopy Pinit Quantity discounts available QuantityPrice Quantity -+ Add to Basket DescriptionTVS surface fix aluminium trickle vent canopy.Developed for revisions to Part F of the Building Regulations, Ventilation (England & Wales).Should be fitted with the TVS Vent to achieve the EA Air Flow figures.Installed on the outside of the window.SpecificationsProjection Closed-Open:21mmDocumentationTVS200C Technical DWG Drawing: DownloadTVS200C Technical PDF Drawing: DownloadTVS400C Technical DWG Drawing: DownloadTVS400C Technical PDF Drawing: DownloadData Card: Download