DuraVent DuraTech 6" and 8" Galvalume Adjustable Extended Wall Support w21.75 This extension tube is specifically

This extension tube is specifically made for the Empire DV25SG and the DV35SG gas furnace installations

Replacement 32" x 44" Black Faceplate Trim for 3500 Wood Insert

does not include TV depth)

Traditionally

DuraVent DuraTech 6" and 8" Galvalume Adjustable Extended Wall Support w21.75 This extension tube is specificallyWith 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