DuraVent DuraTech 7" Galvalume Adjustable Wall Strap glass-beads Will support 20' of 8"

Will support 20' of 8" dia

Travel and shipping charges for parts are not covered by this warranty

non-combustible Class 1 or Class 0 flexible duct

Item Number GGD36BK-B Product Type

DuraVent DuraTech 7" Galvalume Adjustable Wall Strap glass-beads Will support 20' of 8"With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool, while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys for an extra margin of safety. No locking bands or mechanical fasteners required. DuraTechs sleek 1" wall design provides for easy installations through 16" on