Lennox 74B89 is a 1/2 inch by 24 inch black iron pipe manufactured to Schedule 40 standards for use in plumbing, fuel gas, and HVAC applications. Made from durable black iron with precision-cut threading, this pipe delivers dependable performance where a strong, corrosion-resistant connection is required. Schedule 40 wall thickness provides reliable structural integrity and long-lasting service in residential and commercial installations.

This black iron pipe is engineered for easy joining with threaded fittings and components, making it suitable for fuel oil lines, gas systems, and other pressure-bearing applications. The 24-inch length and consistent diameter help streamline installation and reduce labor time. Lennox 74B89 meets industry specifications for strength, durability, and fit, ensuring compatibility with standard Schedule 40 black iron pipe systems.

Whether you are completing an HVAC system, extending a fuel line, or building out a piping network, Lennox 74B89 offers a professional-grade solution that supports safe, efficient operation.

 

Key Features:

• 1/2 inch nominal diameter, 24 inch length
• Schedule 40 black iron for standard wall thickness and strength
• Threaded ends for secure connections with fittings and valves
• Suitable for gas, fuel oil, and HVAC piping systems
• Manufactured to industry specifications for durability and performance

 

Applications:

Use Lennox 74B89 black iron pipe in residential and commercial fuel gas lines, fuel oil distribution, HVAC systems, and other threaded pipe installations requiring a strong, corrosion-resistant connection.

 

Specifications:

• Manufacturer: Lennox
• Part Number: 74B89
• Material: Black iron
• Size: 1/2 x 24 inches
• Schedule: 40
• Ends: Threaded