Norseal Advantage Fire Rated Letterbox

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SALE NOW ON - Selected styles and sizes The Norseal Advantage letterbox comes tested up to 60 minutes fire and smoke protection, compliant with BS476 Part 20:22 in both 44mm and 54 mm thick doors. Our Advantage range is available in either a 10” or 12” size and is a highly competent performer at both. The Norseal Advantage letterbox includes an integrated brush draught seal and fully concealed intumescent liner that wraps around the centre part. Benefits Tested up to 60 minutes fire integrity in compliance with British Standard BS 476 Part 20:22 Adjustable to suit both 44mm and 54mm thick doors Integrated brush draught seal The 12” version has an opening that meets Royal Mail standards for A4 size post Please note letterbox style, colour and intumescent liner colour may vary to those shown. Show more