The Rheem RK013089 Straight Vent Pipe measures 6.56 feet and is designed for concentric venting applications. This high-quality vent pipe is constructed from durable materials, ensuring longevity and resistance to corrosion. It is compatible with various Rheem heating systems, providing efficient exhaust and intake for optimal performance. The concentric design allows for easy installation and effective venting, making it an essential component for maintaining compliance with safety standards and enhancing the efficiency of your heating system.