<br />"Provides a convenient method of providing ventilation through an existing soffit board. Efficient, unobtrusive and easy to fit Can be fitted to existing soffit boards in situ 4mm wide holes comply with BS 5250: 2011 Durable and totally resistant to decay UV stabilised and colourfast Satisfies all NHBC requirements Manufactured to BS EN ISO 9001 and BS EN ISO 14001 Complies with all relevant Building Regulations Meets all relevant British Standards"">