DuraVent DuraTech Chimney Locking Band - For 5" Inner Diameter DuraTech: A vent pipe with a 5" inner diameter is required for this unit. What part of your house gives you the greatest anxiety? Is it because of the piping? Do you ever get worried about it not being up to par? With the DuraVent Locking Band from the DuraTech line of goods, you won't have to! This device is optional and is used for increased security at pipe elbow and tee junctions. However, if increased security is important to you, this is unquestionably the best option. So, if you're looking for the ultimate protection, act now!

Size: 5 Inch Product Dimensions: 7" Dia 2" clearance to combustibles Locking band for pipes with 5" diameter 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