Lennox 63P45 - Metal Fab 4M4, 4" x 48" Type B Double Wall Vent Pipe

 

The Lennox 63P45 (Metal Fab 4M4) is a 4-inch diameter by 48-inch length Type B double wall vent pipe, engineered for safe and efficient venting of gas-fired appliances such as furnaces, water heaters, and boilers. Manufactured by Metal-Fab, a trusted name in HVAC venting solutions, this vent pipe features a galvanized steel outer wall and an aluminum inner wall that work together to provide superior corrosion resistance and long-lasting performance.

This Type B pipe utilizes a double-wall air-insulated design that improves draft efficiency and reduces clearance requirements to combustibles. The twist-lock connection ensures quick, secure installation with minimal tools, making it a preferred choice for both contractors and homeowners. UL-listed and built to rigorous industry standards, the 63P45 is ideal for vertical or horizontal venting configurations in residential and light commercial systems.

 

Key Features:

• Product Type: Type B Double Wall Vent Pipe
• Model: 4M4
• Part Number: 63P45
• Diameter: 4 inches
• Length: 48 inches
• Construction: Aluminum inner wall / galvanized steel outer wall
• Application: Natural gas and propane appliances
• Certification: UL-listed for compliance and safety
• Connection Type: Twist-lock for easy installation

Ensure reliable venting performance with the Lennox 63P45 - Metal Fab 4M4 pipe.

Available now at Beenimax.com – your trusted source for genuine HVAC components.

 

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