DuraVent 3 Inch Diameter B-Vent Pipe Adjustable Wall Thimble

Safety is paramount when adding or updating a chimney system for a gas fire feature, heater, or furnace. Ensure that you have all your Ts crossed and Is dotted with DuraVent. The DuraVent Round Adjustable B-Vent Wall Thimble guarantees proper clearances around your B-vent pipe as it passes through walls on the way to termination. This adjustable thimble doubles as a firestop, which means you can rest easy knowing that your venting system hasn't created a weak point in your wall in the case of a fire.

WARNING: For more information go to www.P65Warnings.ca.gov.