The UAP Framemaster 12 inch letterplate is a high-quality, fire-rated letterbox crafted from mirror polished grade 316 stainless steel. Designed for durability and style, it fits door thicknesses between 40mm and 80mm, making it ideal for composite and timber door applications.

Key Features:

• Complies with BS EN1634-3:2004 smoke leakage regulations
• 60 minutes fire resistance rating
• Special intumescent lining expands up to 50 times its size to block smoke and flames
• Heat absorbers prevent screws from melting and damaging plastic components
• Intumescent activates at 5°C lower than most alternatives on the market
• Designed for 40-80mm thick composite and wooden doors
• 180° opening flap prevents breakage from overextension
• Constructed from corrosion-resistant grade 316 stainless steel
• Lifetime coating guarantee for long-lasting finish and protection