638-120

This premium 4-inch x 18-inch B-Vent length is a essential component for safely exhausting flue gases from gas-fired appliances. Engineered with a durable double-wall construction, this metal venting pipe features an inner aluminum liner that resists corrosion and an outer galvanized steel shell for superior structural integrity and heat protection. Designed for high-efficiency HVAC installations, this B-Vent pipe ensures a secure, airtight connection to maintain the necessary draft for residential furnaces, water heaters, and boilers. Its lightweight yet robust design is optimized for venting Category I natural gas or liquid propane systems, providing a reliable solution for both new installations and professional repairs.
Type: Gas Venting Pipe
Size: 4 inch x 18 inch
Dimensions: 18 in × 4 in × 4 in
Application: Commonly used for venting Category I gas-fired appliances, including residential furnaces, water heaters, and boilers. Suitable for natural gas and liquid propane exhaust systems.
Specifications: Double-wall insulated design; aluminum inner wall for corrosion resistance; galvanized steel outer wall for heat protection; safety-rated for gas-fired ventilation applications.