Sound wave holes are produced inside to reduce noise level. Inside back draft damper is designed to prevent return air and insects.
Designed with easy installation and maintenance. This will be a HVAC Spares sourced replacement, we are very confident that the replacement item matches the physical and technical specifications of the original product. All payments must be received within 7 days. The consumer will be responsible for costs incurred returning goods.9.00AM - 5.00PM Monday to Friday, excluding Bank Holidays and the Christmas Period.