DuraVent DuraTech All-Fuel Chimney Firestop - For 6" Inner Diameter DuraTech: A vent pipe with a 6" inner diameter is required for this unit. What are your concerns concerning your home's piping system? Perhaps flames, dangerous gases, or toxic smoke have seeped into your home? The DuraVent Firestop from the DuraTech series of products is ideal for you! Not only will this firestop eliminate all of the aforementioned issues, but it is also constructed with inner walls that are 25% thicker than competing piping for added protection. So, if you want to sleep soundly every night, this is the product for you!

Size: 6 Inch 2" clearance to combustibles Firestop spacer for pipes with 6" diameter No locking bands or mechanical fasteners required Inner wall is 25% thicker than competitive chimneys for an extra margin of safety Designed for normal continuous operation at 1000 degree Fahrenheit flue gas temperatures For use with wood stoves fireplaces furnaces boilers ranges water heaters or other appliances fueled by wood oil coal or gas