Rheem's 10 in. 6 Units Back to Back Direct Vent Header Kit is designed for efficient direct venting in heating systems. Constructed from high-quality materials, this kit ensures durability and optimal performance. The 10-inch size allows for easy integration into existing venting systems, providing a secure and reliable connection for exhaust gases. Its design facilitates straightforward installation and maintenance, making it suitable for various applications. This product meets industry standards, ensuring safety and efficiency in direct venting operations.