TVS Aluminium Surface Fix Trickle Vent SKU: TVS Aluminium Surface Fix Trickle Vent Pinit Quantity discounts available QuantityPrice Quantity -+ Add to Basket DescriptionTVS surface fix aluminium trickle vent.Developed for revisions to Part F of the Building Regulations, Ventilation (England & Wales).Felted gasket for increased performance.Controllable T-bar deflects air up or down.Unique linkages ensure constant friction and smooth action.Should be fitted with the TVS Canopy to achieve the EA Air Flow figures.Installed on the inside of the window.SpecificationsProjection Closed-Open:16.5-22.5mmEA Air Flow:TVS200 - 1600mm2, TVS400 - 2600mm2DocumentationTVS200 Technical DWG Drawing: DownloadTVS200 Technical PDF Drawing: DownloadTVS400 Technical DWG Drawing: DownloadTVS400 Technical PDF Drawing: DownloadData Card: Download