DuraVent 8 Inch Diameter Adjustable B-Vent Wall Thimble

DuraVent 8 Inch Diameter Adjustable B-Vent Wall Thimble is the largest of 3 sizes: Size 8 Inches; Inside Diameter 8 inches.

The DuraVent 8 Inch Diameter Adjustable B-Vent Wall Thimble is a smart piece of gear that helps you get your venting set up right. It works like a charm to keep things safe by doubling as a firestop, making sure everything stays a good distance from flammable stuff. This handy adjustable thimble fits nicely through walls that are between 4 1/8 and 7 inches thick, making it pretty versatile for different projects. It's designed to make sure your B-vent pipe stays in the right spot and maintains the needed clearance, giving you peace of mind. This piece of equipment is a solid choice for making sure your venting system is installed properly and safely.