Eurospec Intumescent Air Transfer Vent Grille (Various Sizes), Silver – ES400 AIR TRANSFER GRILLE – 150mm x 300mm

Air transfer vent grille designed for use in fire resisting doorsets and compartment wallsnnWhen dormant, the grilles allow air to circulate throughout the building. In the event of a fire they are designed to close and restrict the flow of hot gasses and firennAll air transfer grille systems are tested to BS476 part 20/part22:1987 – 30 and 60 minute fire ratednnComes with a 10 year mechanical guaranteennSizes Available: 150mm x 150mm, 150mm x 300mm, 300mm x 300mm, 112mm x 225mm, 225mm x 225mmnnMatching face plate covers available, sold separately (Please see related products)nn