List of featured suppliers of AIR TRANSFER GRILLES Fire Protection Fire Rated BS 476:1972 Parts 20-24 on Building Products Index
An air transfer grille is an element designed to allow air to move from one area to another. Fire protection fire rated refers to materials or structures that have been tested and found to be resistant to fire. BS 476:1972 parts 20-24 are British standards that define the fire resistance of construction materials and components.
