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Intumescent Products
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Fire Rated Letterboxes
Fire rated doors have undergone years of testing and development to ensure they offer a minimum
performance specifications laid down in British Standards. To retain their integrity try our fire rated
letterbox, visually similar but with a hidden intumescent in case of a full developed fire.
 DHLET - Intumescent Fire Rated Letterbox
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 Hidden Intumescent Liner - unseen           Variable Flap Finishes
 Neoprene Backseal Available to seal off external frame to door to increase weathering performance.

Technical Data
Externally sprung flaps open to approx 147 degrees, suitable for A4 mail aperture size
complies with BS291.1 Internal draught seal, covered by 10 year warranty for UV
stability or mechanical failure (subject to conditions). Secondary internal nylon brush.

Description / OD Size (W x D)
Fire Rated Letterbox
Fire Rated Letterbox
Fire Rated Letterbox
Fire Rated Letterbox
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Hart Wholesale are premier suppliers to the hardware and manufacturing trade. We stock the full range of BLUM hinges, BLUM kitchen fittings and BLUM drawer runners including the innovative BLUMOTION also Domus ducting, ventilation and Intumescent products, together with many thousands of items of hardware including HOSPA screws, hinges, stays, brackets, bolts, hooks etc. We also stock the full range of HERA low voltage lighting and HERA custom design lighting products. Also premier supplies of Veneers and
mouldings with mirror fittings. popular lines are such as window fittings and cabinet handles with draws and drawer runners and draw
runners. Many supplies around use of manufacturing products glides or knock down fittings. primary items such as intumescent or intumisant products and rigid pvc extrusion and wardrobe fittings. other lines frequently requested are radiatror grills, but most
importantly screws and fixings and blum products with hera lighting and ducting with our range of wood vaneers and vaneered
mouldings and weather seals.