Window Trickle vents that conform to BUILDING REGULATIONS.
Window trickle vents with equivalent air rates of 2500EA and 5000 EA as required by approved document "F" 2006 for England & Wales.
Tested to BS 13141-1:2004 - Equivialent area figures as required by approved document "F" 2006. Tested in accordance with BS EN 1026 & 1027:2000.
Simple to fit Window Vents are available in various sizes and colours to suit you window, match your budget and keep the Building inspector happy..