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Introducing the 30 minute Intumescent ABS Frame Telescopic Letterbox, the best in fire protection door hardware. Tested for 30 minute fire doors. Perfect for multi-residential buildings, the intumescent strip is designed to expand when exposed to extreme heat stopping fire being able to travel past the door. This model also comes equipped with an internal draught excluder and external weather seal for increased protection from the elements.
STRONG & STURDY - Made from sturdy aluminium, ensuring it will not rust or break easily while fitted.
FIRE RATED - Tested to 30 minutes
ALL IN ONE - Includes a draught excluder, weather seal and intumescent strip.
FINISH - Top quality satin aluminium finish
