DuraVent DuraTech All-Fuel Adjustable Stainless Steel Chimney Pipe Wall Strap - For 7" Inner Diameter DuraTech: The venting pipe for this unit must have a 7" inner diameter. A key objective is to keep a chimney installation safe, sturdy, and secure. This chimney pipe wall strap's most notable feature. This wall strap is adjustable to accommodate all installation factors. It is also corrosion-resistant because it is made of sturdy and durable stainless steel. This chimney venting device may be adjusted to provide anywhere from a 2"to a 6" clearance. This item is designed to work with Dura Tech chimney pipes.

Supports and stabilizes chimney pipes Adjusts 2" to 6" Stainless steel construction For use with 7" DuraTech chimney pipes Limited lifetime warranty