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.
Features & Benefits
• Letterbox flaps open to 115˚
• Smoke tested
• 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