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	6" Ventialted Firestop & Collar S/S Twin Wall Class 1 Flue The quick release ventilated fire stop plate includes a bottom plate, four off support straps to locate a heavy steel ring and a wire connected with a set of fusible links. Once activated the ring drops closing the large ventilation slots allowing the plate to maintain the fire fresistnace through the joist box section. Compatible with our twin wall flue system for use with domestic and commercial use on gas oil and solid and multi-fuel installations with flue gas temperatures up to 450C and is soot fire resistant. Lengths and fittings have a male and female coupler which fit together and twist to lock in position, the sections are then held in place by a locking band. (images are for illustration only)
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