The 3 in. Polypropylene Flex Vent Spacer from Rheem is designed to provide optimal support and spacing for venting systems in water heaters. Constructed from durable polypropylene, this spacer ensures long-lasting performance and compliance with safety standards. Its lightweight design allows for easy installation, making it suitable for both residential and commercial applications. This vent spacer is essential for maintaining proper airflow and efficiency in your heating system, ensuring safe operation. Ideal for those looking to enhance their venting setup, this product is a must-have for any installation.