The Noritz Box for NR662-OD and NR501-OD models is designed to provide secure housing for essential components in tankless water heating systems. Constructed from durable materials, this box ensures protection against environmental factors while maintaining optimal performance. Its dimensions are specifically tailored to fit Noritz models, allowing for easy installation and access. This box meets industry standards for safety and compliance, making it a reliable choice for both residential and commercial applications. It is an essential part of your heating system, ensuring longevity and efficiency.