The Titon Trimvent Hi Lift is an aluminium slot ventilator that fits over a 13mm slot in a window and provides an Equivalent Area (EA) of up to 4000mm² when fitted with the Hi Flow canopy. These Trickle Vents are ideal for both new build or refurbished situations using any window material and is available in a variety of colours.The Hi Lift design improves the Trimvent range to offer increased ventilation. It gives optimum airflow (and therefore EA) utilising existing Trimvent slot sizes and vent lengths, making them 60% more efficient than previous models.It has been specifically developed for recent revisions to Part F of the Building Regulations for Ventilation (England & Wales), is optimised for use with the Scottish Technical Standards and to improve performance for requirements throughout the UK and Europe.Trimvent ventilators have been specified and fitted on millions of windows throughout the UK and mainland Europe for over 25 years.Meets the requirements set by the Building Regulations F1 - 1995Strong Aluminium ConstructionCompression closing actionInfinitely variable openingSelf-location over slotHigh securityIdeal for night ventilationCanopy with mesh or grille protects against the ingress of rain and insectsTough plastic linkages ensure constant friction and smooth actionSuitable for PVCu or Timber WindowsAvailable air openings quoted are for vent and canopy combination60% more efficient than previous modelsAvailable Finishes: White, Black & Brown.Sizes Available: 255mm (EA 2200mm²) or 400mm (EA 4000mm²)Please Note: Fixings are not included.