638-170

This 6-inch by 36-inch B-Vent pipe length is an essential component for residential and commercial gas-fired appliance ventilation systems. Designed for use with Category I natural gas or liquid propane (LP) appliances, such as high-efficiency furnaces, boilers, and water heaters, this double-wall vent pipe ensures the safe and effective exhaust of combustion gases. The pipe features a corrosion-resistant aluminum inner liner and a durable galvanized steel outer wall, providing a necessary insulating air space that helps maintain a strong draft while keeping the exterior surface cool to meet fire safety clearance requirements. Its 3-foot length makes it ideal for extending vertical or horizontal flue runs through attics, walls, or ceilings during HVAC installations or repairs.
Type: Metal Venting
Size: 6-inch Diameter x 36-inch Length
Dimensions: 36 inches × 6 inches (Inner Diameter) × 6 inches (Inner Diameter)
Application: Used for venting Category I natural gas or propane-fired appliances, including residential furnaces, water heaters, and boilers. Suitable for vertical or horizontal ventilation runs.
Specifications: Double-wall construction, aluminum inner liner, galvanized steel outer casing, twist-lock connection system for secure assembly.