DuraVent DuraTech 16" Diameter Trim Collar for Round Support Box w88.25 Ideal for cathedral ceilings and

Ideal for cathedral ceilings and free-standing appliance installations

with standard sizes of 39”

where gas lamps cast a warm

6” (117mm) W 13

DuraVent DuraTech 16" Diameter Trim Collar for Round Support Box w88.25 Ideal for cathedral ceilings andWith 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