½ hour fire-rated. ABS framed, telescopic letterbox with metal flaps. In the event of a fire the intumescent liner expands rapidly and seals off the letterbox opening, preventing the spread of fire and smoke. Fitted with integral sound dampening bumpers Fire Rated to 30mins Metal Construction For Internal & External Use Adjustable to Fit Doors 40–80mm Opens to 180° Suitable for FD30 Doors

Price: £36.99 from Screwfix

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Stockist	Product Name	Price
Screwfix	Firestop Fire Rated 10" Intumescent Letter Plate Chrome 272mm x 70mm	£36.99	Visit Store