638-109

The 4-inch B-Vent Chimney Liner Adaptor is a high-quality metal venting component designed to provide a secure and efficient transition between standard B-vent pipe and chimney lining systems. This adapter is essential for ensuring proper draft and the safe exhaust of combustion gases in residential and commercial gas-fired appliance installations. Ideal for use with gas furnaces, water heaters, and boilers, it features a durable construction that resists corrosion and stands up to high temperatures. Whether you are performing a chimney relining project or updating an HVAC system, this adapter facilitates a reliable connection that helps maintain indoor air quality and system efficiency. Its precision-engineered design ensures a tight fit, making it a staple for professional HVAC technicians and contractors working with Type B gas vents.
Type: Metal Venting
Size: 4-inch
Application: Used to connect 4-inch B-vent piping to chimney liners in gas-fired heating systems, including furnaces, water heaters, and boilers.
Specifications: Durable metal construction, corrosion-resistant finish, designed for standard 4-inch Type B gas vent transitions.