A robust, commercial, metal framed, telescopic letterbox with metal flaps and fitted with a high performance intumescent liner.
In the event of fire the intumescent liner expands rapidly and seals off the letterbox opening, preventing the spread of fire and smoke whilst maintaining the integrity of the fire door assembly.
Letterbox flaps open to 115˚
Security tested to PAS 23/24
Adjustable telescopic sleeve set to suit 40mm – 80mm door thickness.
Fitted with brush pile draught excluders
Integral sound dampening bumpers
Robust aluminium construction
Fully sealed backplate
Compliant to BS 2911