DuraVent DuraTech 8" Diameter Chimney Roof Support MD36310 Item Number 3DF316-30 Series DuraFlex

Item Number 3DF316-30 Series DuraFlex 316 Product Type Length Size (Diameter) 3" Flex Length 30' Warranty

Fully adjustable with precision hinges

Stunning Vertical Flame

SPU6040N7/L7:

Crushed Glass (7 sq

DuraVent DuraTech 8" Diameter Chimney Roof Support MD36310 Item Number 3DF316-30 Series DuraFlexWith a Refractory 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. DuraTech's sleek 1" wall design provides for easy installations through 16" on center