The RHEEM MFG COMPANY 90 Degree Elbow (RK013098) is designed for single wall venting systems, allowing for efficient directional changes in exhaust flow. Constructed from durable materials, this elbow ensures long-lasting performance and reliability. Its design meets ANSI standards, making it suitable for both residential and commercial applications. This product is essential for creating effective venting configurations, enhancing the overall efficiency of your heating system. Upgrade your venting setup with this high-quality 90-degree elbow.