Sleeved Letterbox Intumescent Liner 300mm (ONLY VALID WITH 112 RANGE)

Sleeved Letterbox Intumescent Liner 300mm (ONLY VALID WITH 112 RANGE)

• Key Technical Specifications: High performance intumescent liner, fire tested to BS 476 part 22: 1987 and BS EN 1634-1, smoke tested to BS 476 Part 31/1:1983, designed for use in 44mm FD30 fire doors.
• Materials and Construction Details: Constructed from a high-quality intumescent material that expands rapidly when exposed to heat, effectively sealing the letterbox opening.
• Advantages for Professional Use: Provides enhanced fire and smoke protection, ensuring compliance with fire safety regulations while maintaining the integrity of fire door assemblies.
• Additional Information: Specifically designed for compatibility with the 112 range of letterboxes; installation should be performed in accordance with manufacturer guidelines to ensure optimal performance.

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