An ABS framed, telescopic letterbox with a satin anodised aluminium flap, suitable for use with FD30 fire doors. In the event of a fire the intumescent liner expands rapidly sealing off the letterbox opening, preventing the spread of fire and smoke.
Suitable for use on FD30 fire doors
Internal brushes provide draught exclusion
Telescopic sleeve allows fitment on foors from 40-80mm thick
Weather seal on the external side of the letterplate
Letterplate opens to 170°