The ASF Promise

  • Guaranteed quality
  • Available from stock
  • Technical support
  • Easy to use
  • Third party certified
  • Reduced project costs

Did you know the ASF range also saves energy

The Building Regulations 2010 Approved Document L requires the conservation of fuel and power in new and existing buildings. The ASF range is designed to be used in a wide range of applications where the passage of air is required to be restricted.