3 in Type-B Gas Vent Partition Thimble, Wall Pass-Through

This partition thimble from the MetalFab BVent collection provides a safe and reliable way to run a 3 in TypeB direct vent through a wall or partition. Its designed to maintain proper clearances from combustibles while supporting and protecting the vent pipe where it passes through structural barriers. Suitable for use with approved gas furnaces, heaters, fireplaces and boilers, this component makes installation cleaner and ensures codecompliant vent transitions in HVAC and venting systems.